| 发明名称 |
Axe |
| 摘要 |
An axe comprising a blade (3) provided with a cutting edge (6) at one end, and a handle (2), and in which the center of gravity of the axe is located at a distance from the cutting edge (6) of the axe and lies in a center-of-gravity plane (C) of the axe located at a distance from a blade plane (B) of the axe parallel with both the center-of-gravity plane (C) and a normal working motion plane (W) of the axe, and in which the cutting edge (6) of the blade and the center of gravity of the axe are arranged to cooperate when the blade (3) hits wood and the cutting edge (6) of the blade partly penetrates into the wood such that at least some of the impact force of the blade (3) is converted into a rotational motion and a motion of the blade (3) in a curvilinear trajectory, the blade (3) is attached to the handle (2) so that the handle (2) is uncircled by the blade (3). |
| 申请公布号 |
US8925207(B2) |
申请公布日期 |
2015.01.06 |
| 申请号 |
US201013265632 |
申请日期 |
2010.04.23 |
| 申请人 |
|
发明人 |
Kärnä Heikki |
| 分类号 |
B26B23/00;B25G3/02 |
主分类号 |
B26B23/00 |
| 代理机构 |
Piedmont Intellectual Property |
代理人 |
Piedmont Intellectual Property |
| 主权项 |
1. An axe comprising:
a blade head, having a first side and a second side connected with a cutting edge at one end, and a handle, wherein a center of gravity of the axe is located at a distance from the cutting edge and lies in a center-of-gravity plane of the axe located at a distance from a blade plane of the axe parallel to both the center-of-gravity plane and a normal-working-motion plane of the axe, the cutting edge and the center of gravity are arranged to cooperate when the blade hits wood and the cutting edge partly penetrates into the wood such that at least some of an impact force of the blade head is converted into a rotational motion and a motion of the blade head in a curvilinear trajectory, the first side of the blade head is attached to the handle so that the handle is unencircled by the blade head, and the blade head is made of flat bar steel; wherein on a side of the blade plane on which the center of gravity of the axe lies, the axe has a first stop element arranged to hit the wood during the rotational motion of the blade head and the motion of the blade head in a curvilinear trajectory, and the first stop element is disposed at the free end of the blade head opposite the cutting edge. |
| 地址 |
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