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    • 6. 发明专利
    • DRIVING DEVICE FOR LARGE-SIZED SLIDING DOOR
    • JPH0617571A
    • 1994-01-25
    • JP34346191
    • 1991-12-25
    • TOMOEGUMI GIKEN KK
    • WAGA KAZUO
    • E05F15/56E06B3/01E05F15/06
    • PURPOSE:To put a driving device compactly in the inside of a sliding door which is less in thickness, and to make the sliding door slide safely and smoothly by a method wherein driving wheels are driven by operation of an oil- hydraulic motor that is actuated by an air motor. CONSTITUTION:As an air valve 16 is opened, compressed air stored in an air tank 10 is sent to an air cylinder 5, and a driving wheel 3 is pushed down, resisting the drawing force of a coil spring, and is brought into contact with a rail 13 and thereby the wheel becomes capable of travelling. At the same time, an air motor 9 is actuated by the compressed air, making an oil-hydraulic pump 7 start, and thereby pressure oil is sent from an oil tank 8 to an oil- hydraulic motor 4. Then, the oil-hydraulic motor 4works and transmits power to the driving wheel 3, making a sliding door 1 slide over the rail 13. Direction of sliding of the sliding door 1 can be changed optionally either to forward motion or rearward motion by operation of a selector lever 18.
    • 9. 发明专利
    • METHOD FOR SLITTING PIPE
    • JPS63157730A
    • 1988-06-30
    • JP30329786
    • 1986-12-19
    • TOMOEGUMI GIKEN KK
    • WAGA KAZUO
    • B21D28/28B23K7/00
    • PURPOSE:To perform a slit forming simultaneously with cutting easily and in a short time by cutting the pipe to be worked by a cutting torch by revolving it around the axial line and yet fixing it temporarily, and moving the cutting torch in the axial line direction and the diameter line direction. CONSTITUTION:The pipe 1 to be worked is rotated around the axial line by a pipe supporting part 2. On the other hand, two cutting torches 2, 2' are ar ranged at specified intervals and said pipe 1 is cut in the specified length. At this cutting stage, the pipe 1 is temporarily fixed by said pipe supporting part 3. Said cutting torches 2, 2' are then moved adequately in the axial line X - X direction and diameter line Y - Y direction to form a slit on the pipe cutting face. The pipe 1 is cut by reopening the cutting thereafter. The cutting of a pipe and formation of a slit are thus performed simultaneously.