Chain saw
AssigneeGlobe (Jiangsu) Co., Ltd.
InventorsYuexun Cao, Yinan Guo, Tao Wang, Lingao Zhang
Life of this patent
Estimating the term…
Abstract
A chain saw includes a housing, a motor, a chain saw bar assembly, a tensioning assembly set on the housing, and an adjustment assembly set on the side cover corresponding to the tensioning assembly. The chain saw bar assembly is detachably connected to the first housing through the combination of the tensioning assembly and the elastic components, the adjustment assembly is movably connected with the tensioning assembly, and the adjustment assembly can adjust the relative position of the tensioning assembly and the guide shaft, to tension the chain set on the circumferential direction of the guide bar and tightly lock the chain saw bar assembly between the first housing and the side cover.
Claims8
A chain saw comprising:
- a housing, comprising a first housing, a second housing, a side cover and a first handle, wherein the side cover is detachably connected to an outside of the first housing, and the first handle is formed on the first housing and the second housing;
- a motor, accommodated in between the first housing and the second housing;
- a chain saw bar assembly, comprising a guide bar extending to a first direction, and a saw chain set around the circumferential direction of the guide bar, the first direction being direction from the first handle to the chain saw bar assembly;
- a tensioning assembly set on the housing, and
- an adjustment assembly set on the side cover corresponding to the tensioning assembly,
- wherein,
- the chain saw bar assembly is detachably connected to the first housing through the cooperation of the tensioning assembly and the adjustment assembly;
- the tensioning assembly comprises a guide shaft set along the first direction, and a tensioning unit, a first elastic component and a second elastic component which are slidably set on the guide shaft, the first and second elastic components limiting the relative position of the tensioning unit and the guide shaft;
- the tensioning assembly comprises a positioning protrusion extending towards the side cover and a holding protrusion which is set displaced to the positioning protrusion, and an extending length of the positioning protrusion is longer than that of the holding protrusion,
- the chain saw bar assembly is positioned on an outside wall of the first housing by the positioning protrusion and the holding protrusion, and the guide bar comprises a sliding slot set corresponding to the positioning protrusion and a holding hole set corresponding to the holding protrusion;
- and
- the adjustment assembly is movably connected to the tensioning unit, and the adjustment assembly adjust the relative position of the tensioning unit and the guide shaft, to tension the saw chain set on the circumferential direction of the guide bar and to lock the chain saw bar assembly between the first housing and the side cover.
Dependencies are inferred from the claim text.