| 摘要 |
1487248 Road marking device L EIGENMANN 18 Nov 1974 [22 Nov 1973] 49776/74 Heading E1G An applicator device D (or D2) for applying a marker tape S along a guide line L-L is propelled by a motor van V (or V2) having a first steering means G for maintaining a course approximately parallel to the line L-L, the device D being allowed lateral movement relative to the van, and a second steering means Ga and a sight 10 (or 66) are provided whereby the device D can be steered by the means Ga to maintain itself on line L-L. In figure 1, the sight is on an arm 12 pivoted to the van and the steering wheel Ga acts directly on the arm 12 and also on an hydraulic actuator 18 for displacing the device D. Alternatively, the steering wheel Ga and sight may be mounted directly on the device D. If the device D is towed behind the van V Fig. 2 (not shown), the steering wheel acts on an hydraulic actuator in the tow linkage. The device may be pushed, either by a vertical axis roller in the van engaging a bumper on the device or by flexible push rods 62, 64. The tape rolls may be mounted in the van or in a separate trailer. |
