| 摘要 |
PURPOSE:To keep off a noise, besides simple in assemblage and maintenance as well as to improve durability, by pressing pressure air in a flexible slender tube roll being hermetically sealed with a cover body fitted with a shaft part at both ends, making it into trough type arcuate form, while pivotally supporting both ends and supporting this trough type arcuate belt. CONSTITUTION:Both ends of a flexible slender tube roll made up of rubber or the like is hermetrically sealed with an enclosing cover body A with a shaft part 5, and pressure air is charged to the inside of the tube roll 4. And, this air charged flexible slender tube roll 4 is formed into the specified through type arcuate form and the shaft part 5 is supported with a bearing 10, thus a trough type arcuate belt carrier is made up. Then, a trough type arcuate belt 17 is supported. With this constitution, structural simplicity, lightweightiness and ease of assemblage and maintenance all come to fruition and, what is more, noise prevention and improvements in belt durability are well promotable. |
