Load indicating device in hydraulic cargo handling apparatus
专利汇可以提供Load indicating device in hydraulic cargo handling apparatus专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent accident owing to dislocation of a capillary tube, etc. by using a plug provided with an extremely small pressure detecting hole at the end part in the load indicating device for mounting to piping to be connected to an actuator.
CONSTITUTION: A nozzle-form plug 22 is screwed to the top end of the pipe part 7A of an elbow pipe 7. The nozzle-form plug 22 has a cylindrical portion 22a at its end and has a pressure-detecting fine hole 22b at its fine inner end face. The fine hole 22b is communicated with the center hole 22c of the plug 22. In addition, the end of the fine hole 22b is in the position slightly inner than the inside wall surface of the elbow pipe 7 or in the position parallel with its inside surface. With such construction, the direct entry of the pressure waves propagated from a pump into the pressure-detecting fine hole 22b of the plug 22 does not occur and since the reflected waves from the inlet of a hydraulic cylinder are sufficiently attenuated at the angle part of the elbow pipe 7, the stability of the pointer of the load meter is assured. Since the capillary tube in the elbow pipe is eliminated in this way, the accident owing to the dislocation of the capillary tube, etc. may be prevented.
COPYRIGHT: (C)1980,JPO&Japio，下面是Load indicating device in hydraulic cargo handling apparatus专利的具体信息内容。
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