举例说明了托辊和带式输送机固定部件之间以及托辊之间的运行皮带的危险类型。描述了不同的安全装置，这些装置将达到此类装卸设备操作的可接受安全水平。补充ISO 1819、ISO 7149和TR 5045，所有这些都涉及安全问题。

Gives examples of the kinds of hazards connected with running belts between idlers and fixed parts of belt conveyors and also between the idlers themselves. Describes different safety devices which will achieve acceptable safety levels for the operation of this type of handling equipment. Supplements ISO 1819 and ISO 7149 and TR 5045, all of which deal with safety issues.