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    • 7. 发明专利
    • BREAKER SHIFTER FOR ENCLOSED SWITCHBOARD
    • JPH11196507A
    • 1999-07-21
    • JP36069897
    • 1997-12-26
    • TOKO SEIKI KK
    • HARIKAE SHINICHIRONAKAJIMA HIROYUKI
    • H02B11/167
    • PROBLEM TO BE SOLVED: To improve movement of a breaker body simply into an electrically operated type even in an existing breaker shifter for an enclosed switchboard having no long- sized space in a front, by effectively utilizing the dead space of the enclosed switchboard rationally without requiring large remodeling and resulting in scaling-up. SOLUTION: An electrically operated shifter 4 having a U shape in a plan view consisting of two speed reducers 6, 6, comprising a motor 5, a couple of decelerators 6 disposed at both sides in the cross direction of a breaker body 1 and being mutually interlocked through a connecting shaft 8 for decelerating the rotation of the motor 5, two jacks 7, 7 disposed on both sides in the cross direction of the breaker body 1 and reciprocated along the moving direction of the breaker body 1, and breaker moving metal fittings 15 fixed and coupled over a section between movable embers 7B, 7B of these two jacks 7, 7 while being bonded and connected for integral movement with the breaker body 1, is arranged and fastened onto the floor face of an enclosed switchboard 2 on the rear side of the breaker body 1. An electrically operated type enclosed switchboard is so improved as to be capable of moving the breaker body 1 to the place of connection and the place of disconnection by electric power through the electrically operated type shifter 4.
    • 9. 发明专利
    • IMPELLER FOR IMPELLER-TYPE FLOWMETER
    • JPH10170313A
    • 1998-06-26
    • JP32682696
    • 1996-12-06
    • TOKO SEIKI KK
    • KAWANISHI MASANORI
    • G01F1/06G01F1/12
    • PROBLEM TO BE SOLVED: To obtain an impeller which reduces a reaction torque due to the resistance of a fluid and which suppresses a peak value to be small by a method wherein a right-angled corner part which is formed of the back side and of the other side on the downstream side of the fluid at the fluid receiving face of a blade is chipped and removed and a contour line is formed to be an arc shape. SOLUTION: In an impeller 1, regarding every fluid receiving face 41 at a plurality of blades 4, a right-angled corner part 41c which is formed of the back side 42 situated on the downstream side in the flow direction F1 of a water current and of its outer sides 43 is chipped and removed. Then, a contour line 44 in the connection part of the back side 42 to the outer side 43 is formed to be an arc shape. On the other hand, three other corner parts 41a , 41b , 41d at every receiving face 41 are a formed respectively to be right-angled. When every blade 4 in this shape is adopted, a reaction torque due to the resistance of the water current in a large-flow-rate region is reduced, and a peak value in a very-small-flow-rate region can be reduced by its portion. In this case, the area of a chipped and removed range A is set at 0.2 to 8.0% of the are of the receiving face 41 as compared with a case in which it is not chipped and removed, and the radius R1 of the contour line 44 is set at 2 to 3mm.