| 摘要 |
A chain bar unit (2600) for a wall saw (100) include a bar (1116) configured to receive a circulating chain or wire around a perimeter of the bar (1116). The chain bar unit (2600) also includes a driving gear (1140) for driving the chain or wire around the bar (1116), the driving gear (1140) configured to be coupled to an output shaft (372) of the wall saw (100). The chain bar unit (2600) further includes the bar (1116) being tapered from an end (2610) proximate to the driving gear (1140) to a distal end (2605) having a distal end radius (2615), wherein a width (2620) of the bar (1116) at the proximate end (2610), is at least two times the distal end radius (2615) of the distal end (2605). |
