Back to results
US 2016/0354941 A1Published application
Axe and axe head
OwnerHeikki KÄRNÄinventor
Life of this patent
Estimating the term…
Abstract
An axe includes an axe head and a handle. The axe head having a first handle attaching structure, which extends from a first side edge of a frame section and which is located on a first axe head side of the axe head and having a second handle attaching structure, which extends from a second side edge of the frame section and which is located on the first axe head side of the axe head. The frame section of the axe head, the first handle attaching structure of the axe head, the second handle attaching structure of the axe head are parts of a one-piece structure formed by plastically deforming and cutting a flat blade stock of generally uniform thickness.
Claims18
An axe comprising:
- an axe head and a handle to which one end portion the axe head is mounted,
- wherein the axe head is formed of a flat blade stock of generally uniform thickness,
- wherein the axe head having a sharpened cutting edge,
- wherein the axe head having a frame section comprising a first side face and a second side face, and a first side edge and a second side edge between the first side face and the second side face,
- wherein the axe head defining a first axe head side on the side of the first side of the frame section and a second axe head side on the second side face of the frame section,
- wherein the centre of gravity of the axe is located on a centre-of-gravity plane, which is parallel with a blade plane on which the sharpened cutting edge of the axe head is located and which is located at a distance from the blade plane and which is parallel with a normal working motion plane of the axe,
- wherein the sharpened cutting edge of the axe head and the centre of gravity of the axe are arranged to cooperate when the sharpened cutting edge of the axe head hits the wood and the sharpened cutting edge of the axe head penetrates into the wood such that at least some of the impact force of the axe head is converted into a rotational motion of the axe head and a motion of the axe head in a curvilinear trajectory, and
- wherein:
- the axe head having a first handle attaching structure, which extends from the first side edge of the frame section of the axe head and which is located on the first axe head side of the axe head,
- the axe head having a second handle attaching structure, which extends from the second side edge of the frame section of the axe head and which is located on the first axe head side of the axe head, the frame section of the axe head, the first handle attaching structure of the axe head, the second handle attaching structure of the axe head are parts of a one-piece structure formed by plastically deforming and cutting said flat blade stock of generally uniform thickness,
- the first handle attaching structure being provided with an first opening that is penetrated by the handle, and
- the second handle attaching structure being provided with a second opening that is penetrated by the handle .
9 more elements
An axe head
- wherein the axe head is formed of a flat blade stock of generally uniform thickness, the axe head comprising:
- a sharpened cutting edge,
- wherein the axe head has a frame section including a first side face and a second side face, and a first side edge and a second side edge between the first side face and the second side face,
- wherein the axe head defines a first axe head side on the side of the first side of the frame section and a second axe head side on the second side face of the frame section,
- wherein the axe head has a first handle attaching structure, which extends from the first side edge of the frame section of the axe head and which is located on the first axe head side of the axe head,
- wherein the axe head has a second handle attaching structure, which extends from the second side edge of the frame section of the axe head and which is located on the first axe head side of the axe head,
- wherein the frame section of the axe head, the first handle attaching structure of the axe head, the second handle attaching structure of the axe head are parts of a one-piece structure formed by plastically deforming and cutting said flat blade stock of generally uniform thickness,
- wherein the first handle attaching structure being provided with an first opening for a handle, and
- wherein the second handle attaching structure being provided with a second opening for the handle.
6 more elements
Dependencies are inferred from the claim text.