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公开(公告)号:US5660071A
公开(公告)日:1997-08-26
申请号:US618563
申请日:1996-03-20
摘要: A drawing device including a drawing block and a traction device, where the traction device includes two drive belts and an automatic engagement device. This automatic engagement device includes an auxiliary traction device propelled with power by the traction device.
摘要翻译: 一种包括绘图块和牵引装置的牵引装置,其中牵引装置包括两个传动带和自动啮合装置。 该自动接合装置包括由牵引装置驱动的辅助牵引装置。