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    • 36. 发明专利
    • ONE-WAY ROTARY GEAR
    • JPH02129452A
    • 1990-05-17
    • JP25690789
    • 1989-09-29
    • MOORE BUSCH PIN CO
    • RONARUDO JIEE SUTEIIRUYUUJIIN EMU RORINTSU
    • F16D41/00F16H1/00F16H35/00F16H55/08
    • PURPOSE: To drive one gear in one direction only by another gear by forming a step on a first tooth surface of every other tooth, and cutting the first tooth surface of the remaining sides away throughout the total length of tooth height. CONSTITUTION: When an ordinary driving gear 27 is rotated in the direction of an arrow 31, the tooth 33 of the gear 27 engaged with the tooth 35 not having a step and cut away throughout the total length of tooth height of another gear 25, and the tooth 37 engaged with the tooth 39 having a step are also normally driven and operated. In the case when the gear 27 is rotated in the opposite direction of the arrow 31, the gear 25 is normally driven. When the gear 25 is defined as driving gear and is rotated in the direction of an arrow 29, the gear 27 is normally driven, but when intending to drive it in the direction of an arrow 41, a step 45 of a tooth 43 collides with the top surface 47 of a tooth 49, and a tooth flank 51 of a tooth 43 is collides with a front edge of the top surface 47, so that the rotation of both gears 25, 27 are locked. whereby one gear can drive the other gear in one direction only.
    • 38. 发明专利
    • GEARED SPEED CHANGE DEVICE
    • JPH01299344A
    • 1989-12-04
    • JP12831688
    • 1988-05-27
    • HITACHI LTD
    • YOSHITSURU MUTSUO
    • F16H1/00F16D11/10
    • PURPOSE:To prevent the accompanied rotation of a pump shaft by providing a gear clutch which can be connected and separated in an automatic operation between the output gear of a geared speed change device and the pump shaft which are used for a drainage and pump-up pump or the like. CONSTITUTION:When a hydraulic pressure is fed to an oil way 16 to separate a clutch, a piston 14 is raised in the direction of the arrow gamma and it moves a clutch sleeve 10. When the hydraulic pressure is fed further, the clutch sleeve 10 pushes up the end of an output shaft through an end plate 13, to generate a condition to make a gap DELTAl between the clutch sleeve 10 and an input coupling 12. In this case, the gearing of the outer spur gear 12A of the input coupling 12 and the inner spur gear 10A of the clutch sleeve 10 is released, and the rotation of a motor is not transmitted to a pump shaft 7.
    • 40. 发明专利
    • GEAR TRANSMISSION DEVICE
    • JPH01242871A
    • 1989-09-27
    • JP6867588
    • 1988-03-23
    • NIPPON DENKI HOME ELECTRONICS
    • FUTAISHI ITSUNARI
    • F16H1/00F16H55/06
    • PURPOSE:To obtain a gear transmission device eliminating any noise and any wear by constructing the gear transmission device in a way that a gear the addendum of which is constructed by a superconductor and a gear the addendum of which is constructed by a magnetic pole are combined. CONSTITUTION:A gear transmission device is constructed by combining a gear 8 the addendum 4 of which is constructed by a superconductor 6 with a gear 10 the addendum 10 of which is constructed by a magnetic pole 14. By such construction, repulsion due to Meissner effect works between the superconductor 6 of the addendum 4 of the gear 8 and the magnetic pole 14 of the appendum 10 of the gear 16. And for example, when rotary force is applied to the gear 8 from a power source side, the gear 16 as a load side is driven with a fixed space therebetween. Accordingly, the mutual gears 8, 16 rotate with keeping the fixed space so that mechanical contact sliding is eliminated. As a result, any noise does not occur and wear can be eliminated.