PURPOSE: To easily move a heavy object in the vertical direction or in the right or left direction by arranging a gear box on an expansion support base, and providing a bolster on the outer periphery of the gear box via an expansion arm.
CONSTITUTION: A central shaft 5 is erected on an expansion support base 3, a screw 5' is carved over the whole length on the outer periphery of the central shaft 5, and a rotary ring 8 having holes 12 bored in the radial direction is fixed on the base end side of the central shaft 5. A gear box 4 is outwardly fitted to the central shaft 5, an expansion arm 1 is extended on the outer periphery of the gear box 4, and a bolster 2 supporting a load is provided at the tip. The gear box 4 is provided with a gear 10 meshed with the central shaft 5 inside and a gear 11 meshed with the gear 10, and the gear 11 is integrally provided on a rotary shaft 6 fixed with a handle 7 at the tip in the perpendicular direction. When the handle 7 is rotated, the gear box 4, i.e., the bolster 2, is vertically moved via the gears 11, 10.
| WO/2023/002425 | SELF-PROPELLED WRAPPING MACHINE |
ISHIDA KAZUO
KAMIO KATSUMI
TOCHIO TADASHI
AKIYAMA NOBORU
| JP2105994B | ||||
| JPS5229476U | 1977-03-01 |
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