摘要:
A braking apparatus is provided for an elevator which includes a cage, a counterweight, a main sheave, a motor for rotating the main sheave, a deflector sheave, and a rope wound around the main sheave and the deflector sheave, the rope extending from the cage to the counterweight. The braking apparatus comprises a first brake for the main sheave, and a second brake for the deflector sheave. Both brakes are controlled to apply an appropriate braking force to the cage in accordance with the load and the speed of the cage.
摘要:
In an elevator, for controlling the upward and downward movement of a cage, a shoe is brought into and out of pressing contact with a drum or a disk of a brake by a combination of a spring and a hydraulic cylinder. The optimum braking force is determined in accordance with the inertial mass and the speed of the cage to be braked, and the fluid pressure is controlled to control the force of pressing of the shoe against the drum or the disk, so that the brake can always produce the optimum braking force. A controller for controlling the pressure of the hydraulic cylinder is operated by an emergency power source. The brake can be controlled with a high responsibility and its braking force can be controlled arbitrarily, and even in the event of a power failure, the brake can be operated by the emergency power source of a small-capacity. Therefore, in the normal condition, the cage can be held accurately in its stop position, and in the event of an emergency, the optimum braking force is produced in accordance with the load and the speed of the cage, and the shortest braking distance can be achieved with a small braking impact.
摘要:
An elevator apparatus is provided with a hoisting unit including a drive sheave for winding a rope around it. The hoisting unit includes a rotary member. The rope has a car attached at one end thereof for suspending. A braking force is applied to the rotary member by a biasing unit. The braking force against the rotary member is released by a releasing unit, and is reduced by a reducing unit. In emergency stop of such an elevator apparatus, slipping of the rope is not caused to control the braking force with ease.
摘要:
Disclosed is a hydraulic elevator in which the load and/or the oil temperature are detected under the running condition of a cage of the hydraulic elevator and a proper value of the deceleration delay time corresponding to this running condition is obtained to thereby control the flow of pressure-oil on the basis of the proper value of the deceleration delay time. Various values of the deceleration delay time are stored in advance in the form of table with respect to various values of load and oil temperature.
摘要:
Disclosed is a hydraulic elevator in which the load and/or the oil temperature are detected under the running condition of a cage of the hydraulic elevator and a proper value of the deceleration delay time corresponding to this running condition is obtained to thereby control the flow of pressure-oil on the basis of the proper value of the deceleration delay time. Various values of the deceleration delay time are stored in advance in the form of table with respect to various values of load and oil temperature.
摘要:
A hydraulic elevator comprises a car, a hydraulic jack to drive the car, a hydraulic pump, and control means for controlling a flow rate of fluid flowing to or from the hydraulic jack thereby to control movement of the car. The control means comprises a main valve constructed so as to allow fluid the flow from the pump into the hydraulic jack when a pressure of the fluid is higher than a predetermined value thereby to effect upward running of the car, and to check a fluid flow from the hydraulic jack when the pressure of the fluid from the pump is less than the predetermined value, and valve control means including a plurality of pilot valves for controlling, when the pressure of the fluid from the pump is less than the value, the main valve to open and close, and wherein the valve control means controls the closing operation of the main valve along at least two different patterns.
摘要:
The present invention provides an automatic blood-sampling tube preparation device which can detect the presence of the proper or improper blood-sampling tube by selectively taking out a blood-sampling tube and transferring the blood-sampling tube to a label pasting position, printing information of the patient on a label, pasting the printed label on the blood-sampling tube positioned in the label pasting position, and collecting the label pasted blood-sampling tubes in the container for each patient. The device also includes photographing means for photographing an appearance of the blood-sampling tube taken out from the blood-sampling tube containing section and a control means arranged to have a threshold with respect to at least one characteristic information previously extracted from an appearance of a blood-sampling tube, to extract the characteristic information from the appearance image photographed to judge whether the blood-sampling tube corresponds to the instruction information from the doctor.
摘要:
A process for producing resin-coated metal particles includes coating surfaces of metal particles with silica; allowing a polymerizable group to adsorb onto the surfaces of the silica-coated particles by the use of a silane coupling agent; and coating the surfaces of the silica-coated particles with a polymeric resin by mixing the particles to which the polymerizable groups have been adsorbed, a polymerizable monomer, a polymerization initiator, and a dispersant to polymerize the polymerizable monomer and the polymerizable groups.
摘要:
A ceramic slurry composition has a powdered ceramic uniformly dispersed therein without excessive damage thereto. A method for producing a ceramic green sheet using the ceramic slurry composition and a method for producing multilayer ceramic electronic devices are also disclosed. The ceramic slurry composition contains the powdered ceramic, a dispersing agent, a binder and a solvent, in which an anionic dispersing agent is used as the dispersing agent, and the content of the anionic dispersing agent is set to be such that the total acid content thereof corresponds to about 10 to 150% of the total base content of the powdered ceramic. In addition, the powdered ceramic having an average particle diameter of about 0.01 to 1 μm is used.
摘要:
A cover glass frame as a second frame body mounting thereto a cover glass is fitted onto an objective lens frame, which is a first frame body mounting thereto a tip end lens and an objective lens as optical members, in a manner to be movable in a direction of optical axis, and is fixed after having been adjusted in position in the direction of optical axis. The objective lens frame and the cover glass frame thus fitted and fixed are fitted into and joined to a cylindrical member to constitute an imaging unit, which is then arranged in a tip end portion of an insertion part of an endoscope. Thereby, focus adjustment can be performed on the optical members, which are assembled into the imaging unit, and a tip end side portion of the insertion part of the endoscope can be made small in outer diameter to prevent entry of vapor into the imaging unit even when autoclave sterilization is carried out.