| 摘要 |
A chainsaw (100) includes a power unit, a bar (120), a chain (122) operably coupled to the bar (120) to rotate around the bar (120) responsive to drive power from the power unit, an oil pump operably coupled to the power unit to deliver oil to the chain (122), an oil reservoir (150, 300,400) and a cap (152, 200, 420). The oil reservoir (300) is configured to hold oil for delivery from the oil pump to the chain (122) and includes a fill opening (310) having a substantially circular shaped orifice in a portion of the oil reservoir (150, 300, 400). The oil cap (152, 200, 420) is configured to be securable into the fill opening (310) responsive to engagement between the oil cap (152, 200, 420) and the fill opening (310). The fill opening (310) defines an axial sealing surface (330, 460) and a radial sealing surface (340, 450). The axial sealing surface (330, 460) defines a continuous surface extending around a periphery of the fill opening (310). The radial sealing surface (340,450) includes at least one cutout portion (350) forming a discontinuity in the radial sealing surface (340, 450 relative to a shape of the fill opening (310). |
| 主权项 |
1. A tank for a power tool, the tank for containing one of oil/lubricant or petrol, the tank comprising:
a reservoir configured to hold liquid, the reservoir including a fill opening comprising a substantially circular shaped orifice in a portion of the reservoir defining a radial sealing surface; and a cap configured to be securable into the fill opening responsive to engagement between the cap and the fill opening, wherein the fill opening further defines an axial sealing surface, the axial sealing surface defining a continuous surface extending around a periphery of the fill opening, and in that the radial sealing surface including at least one cutout portion forming a discontinuity in the radial sealing surface relative to a shape of the fill opening. |
