초록 ▼

In a vehicle with a power source for moving said vehicle and for spreading liquid material on a road surface a material distributing apparatus is provided which includes a hydrostatic transmission and associated control mechanism for automatically maintaining a constant application rate of the mater

In a vehicle with a power source for moving said vehicle and for spreading liquid material on a road surface a material distributing apparatus is provided which includes a hydrostatic transmission and associated control mechanism for automatically maintaining a constant application rate of the material to the road surface in response to changes in the width of the application pattern. The hydrostatic transmission is responsive to the power source for providing a controlled rate of flow of the liquid material from the tank of the distributing apparatus, to a discharge element of the apparatus and onto the road surface so as to maintain a constant rate of application for the material despite changes in the speed of the vehicle. A pattern adjustment mechanism is provided for adjusting the pattern provided by the discharge element. The control mechanism is responsive to a change of the distribution pattern provided by the pattern adjustment mechanism to cause the hydrostatic transmission to adjust its rate of flow of the liquid material to the discharge element -- in relation to the speed of the power source and the resulting speed of the vehicle -- such that the rate of application remains unchanged.

대표청구항 ▼

In a vehicle with a primary drive source for moving said vehicle and for spreading liquid material on a ground surface, a material distributing apparatus comprising: a tank carried on said vehicle for holding said liquid material; a discharge element for discharging the liquid material, said dischar

In a vehicle with a primary drive source for moving said vehicle and for spreading liquid material on a ground surface, a material distributing apparatus comprising: a tank carried on said vehicle for holding said liquid material; a discharge element for discharging the liquid material, said discharge element being capable of changing the pattern of distributing said liquid material; a pump for initiating and maintaining a controlled rate of flow of said liquid material from said tank to said discharge element; first means responsive to said primary drive source for providing to said pump an adjustable drive source that maintains a static drive ratio with respect to said primary drive source such that said rate of flow of said liquid material is automatically adjusted in response to changes in the speed of said vehicle in order to maintain a constant rate of application for the material onto the ground surface despite changes in the speed of the vehicle; second means for adjusting the pattern provided by said discharge element; third means responsive to change of the distribution pattern provided by said second means for automatically adjusting said drive ratio to said first means so as to adjust the rate of flow of the liquid material from said pump to said discharge element such that the rate of application remains unchanged despite changes in said distribution pattern; a network of piping interposed between said pump and said discharge element, said network including valves for network wherein each of said valves includes an actuating means responsive to a signal from a manually operable means; and said manually operable means having discrete alternative positions for selecting routes of said liquid material through said network for loading or distributing said material and, in connection with the selections, said third means being responsive to the selection of particular routes to provide a predetermined drive ratio for said first means.