초록 ▼

A sod cutting unit supports a vibrating sod-cutting blade on a pivot under a platform and driving and control mechanism above the platform, while drawing the platform across a field on a support which allows the platform to pivot around a horizontal axis parallel to the direction of motion across th

A sod cutting unit supports a vibrating sod-cutting blade on a pivot under a platform and driving and control mechanism above the platform, while drawing the platform across a field on a support which allows the platform to pivot around a horizontal axis parallel to the direction of motion across the field. A multi-unit machine supports two or more units from the same draft suspension, an intermediate unit of three being additionally movable up-and-down relative to the outer units. Each unit pivots independent of all the others.

대표청구항 ▼

A multi-unit sod-lifting apparatus including a primary draft suspension supporting a plurality of individual sod-lifting apparatus units while drawing all of them in a sod-cutting path, said apparatus comprising first and second support means supporting first and second of said units from respective

A multi-unit sod-lifting apparatus including a primary draft suspension supporting a plurality of individual sod-lifting apparatus units while drawing all of them in a sod-cutting path, said apparatus comprising first and second support means supporting first and second of said units from respective first and second locations which are spaced apart on said primary draft suspension, means supporting a third of said units from a third location on said primary draft suspension which is intermediate said first and second locations, said third unit support means including a subsidiary draft suspension coupled to said primary draft suspension via a parallelogram link which during use holds said subsidiary draft suspension spaced from said primary draft suspension with freedom to move up-and-down relative to said primary draft suspension and to said first and second units, and means effective during use for urging said subsidiary draft suspension downward relative to said primary draft suspension and to said first and second units, said latter means including a pressure pad fixed to said subsidiary draft suspension, an arm fitted at one end with a roller and connected intermediate its ends via a link to said primary draft suspension, and resilient means between said primary draft suspension and the remaining end of said arm for urging said roller downwardly against said pressure pad.