Battery pack
US-11302989-B2 · Apr 12, 2022 · US
US12464980B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12464980-B2 |
| Application number | US-202217704834-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 25, 2022 |
| Priority date | Mar 25, 2022 |
| Publication date | Nov 11, 2025 |
| Grant date | Nov 11, 2025 |
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Official abstract text for this publication.
A working machine includes a machine body, a front wheel and a rear wheel provided apart from each other in a front-rear direction of the machine body. A working portion is provided between the front wheel and the rear wheel and includes a power source and a cutter blade capable of being rotated around a rotary shaft by the power source. A compaction roller is provided between the front wheel and the rear wheel.
Opening claim text (preview).
The invention claimed is: 1 . A working machine comprising: a machine body; a front wheel and a rear wheel provided apart from each other in a front-rear direction of the machine body; a working portion provided between the front wheel and the rear wheel, and including a battery, a power source driven by electric power from the battery, and a cutter blade capable of being rotated around a rotary shaft by the power source; and a compaction roller provided between the front wheel and the rear wheel, wherein the battery and the power source are disposed in a middle position in the front-rear direction of the machine body between the front wheel and the rear wheel, and the battery is tilted forward, the compaction roller includes a front roller and a rear roller unit, the rear roller unit including at least one rear roller, and a lower end position of the front roller is positioned below a lower end position of the front wheel, and a lower end position of the at least one rear roller is positioned below a lower end position of the rear wheel. 2 . The working machine according to claim 1 further comprising: a height adjustment mechanism configured to move the compaction roller or the front wheel and the rear wheel relative to the machine body in an up-down direction. 3 . The working machine according to claim 1 further comprising: a height adjustment mechanism configured to move the front wheel and the rear wheel relative to the machine body in an up-down direction. 4 . The working machine according to claim 1 , wherein the front roller is provided between the front wheel and the working portion, and the rear roller unit is provided between the rear wheel and the working portion. 5 . The working machine according to claim 4 , wherein a diameter of the at least one rear roller of the rear roller unit is smaller than a diameter of the rear wheel. 6 . The working machine according to claim 4 , wherein the at least one rear roller of the rear roller unit includes two rear rollers provided between the rear wheel and the working portion. 7 . The working machine according to claim 6 further comprising: a support portion which supports the two rear rollers and has a support column, wherein the two rear rollers are provided on the machine body to be capable of swinging around the support column. 8 . The working machine according to claim 1 , wherein in the front-rear direction, a distance between the front wheel and the rotary shaft is substantially the same as a distance between the rear wheel and the rotary shaft.
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