| 摘要 |
PURPOSE:To restrict lateral shaking of a belt during its use by means of a projection and prevent contact of a band to a pulley by providing an upward projection and an umbrella part in one body on a block main body made of metal or hard resin to be assembled with a band. CONSTITUTION:A block 2a comprises an umbrella part 7 extended out upward in one body from the middle of a main body part 6 which has a sliding face 5 in contact with a pulley 4. Upward projections 8 are also formed on both sides of the main body part 6. Bands 3 are stored in spaces 9 formed between the umbrella part 7 and the main body part 6. Lateral shaking and jumping out of the bands 3 are restricted by means of the projections 8 and the umbrella part 7 respectively. The bands 3 are inserted in the blocks 2a from opening ports 10 to assemble a belt in the form of juxtaposition with the plural number of the blocks 2a in an endless row. |
