82results about How to "Avoid standing" patented technology

The invention relates to a stepping motor control circuit and an analog electronic timepiece capable of preventing the halfway stop by accurately determining the rotation status of a stepping motor even when the voltage of a secondary battery used as a power source is lowered. A detection interval in which the rotation status of a stepping motor is divided into a first interval immediately after driving executed by a main driving pulse, a second interval later than the first interval, and a third interval later than the second interval. The driving is executed by a correction driving pulse and the main driving pulse is increased, when a control circuit drives the stepping motor in a driving way different from a driving way at the time of exceeding a predetermined voltage in a case where the voltage of a secondary battery is lowered to be equal to or less than the predetermined voltage and when a rotation detection circuit and a detection time comparison determination circuit detect an induced signal exceeding a first reference threshold voltage in the first interval and the second interval and do not detect the induced signal exceeding a second reference threshold voltage lower than the first reference threshold voltage in the third interval.

The invention discloses a raw coal centrifugal dewaterer for coal mines, comprising a centrifugal dewatering assembly and a drive device, wherein the centrifugal dewatering assembly comprises a shell, a liquid-throwing cylinder and a material-throwing disc which are internally sheathed in sequence. When in use, the raw coal containing water falls on the material-throwing disc by a chute; the material-throwing disc rotates at high speed under the drive of a dewatering power input shaft; a material-throwing blade acts on the raw coal in a centrifugal manner, the coal and the water are separatedinitially, simultaneously the water and the coal are laminated instantaneously on the liquid-throwing cylinder due to centrifugal force, the water flows out through sieve pores on the wall of the liquid-throwing cylinder and enters a water-receiving groove along an interlayer; the dewatered raw coal falls on the material-receiving chute along the inner surface of the liquid-throwing cylinder; andfor preventing the coal from being stuck at the inner wall of the liquid-throwing cylinder, an arc-shaped blanking rib plate is arranged, the centrifugal principle is used for accelerating the falling of the dewatered raw coal, and the coal is dewatered more thoroughly in shorter time, thus avoiding long-period static placement and improving the production efficiency. In the raw coal centrifugal dewaterer, the occupied area can be omitted compared with the sedimentation tank, thus reducing investment, labor operation and production cost.

An article ejecting device of an automatic vending machine includes an article storage rack having an article storage passage for storing articles while being laid sideways, a base board forming one side of the article storage passage, a first stopper member movable between a protruding position in which the first stopper member protrudes toward the article storage passage and a retractable position in which the first stopper member is retracted from the article storage passage, a second stopper member movable between a protruding position in which the second stopper member protrudes toward the article storage passage and a retractable position in which the second stopper member is retracted from the article storage passage, and an outlet adjustment member forming another side of the article storage passage. The first stopper member includes an article placement surface having a holding portion holding the first vending article in a rolling manner.