| 摘要 |
PROBLEM TO BE SOLVED: To provide a road heater for pavement work that resolves problems with conventional methods such as: heating a roadbed surface with a burner and other devices is not sufficient for thawing inside of the roadbed or a frozen roadbed; and use of a road heater with which a reactive heat generating material is sprinkled on a frozen roadbed for disintegrating and thawing out an inner part of the roadbed is burdensome and costly.SOLUTION: A road heater 1 for pavement work is for thawing out a frozen roadbed or a base course, and includes: a shaft installed horizontally on a support member fitted on a movable work machine; a roller supported on the shaft for rolling over a road surface of the roadbed or the base course; a hole pierced around the roller for discharging hot air from an inner space to outside; a heater supported on the support member or on a side plate supported on the support member and having a tip part facing toward the inner space of the roller; and a heat insulation cover wound around the roller, except at a lower part on a rolling surface of the roller, leaving a prescribed interval.SELECTED DRAWING: Figure 1 |
