Impact tool
AssigneeHitachi Koki Co., Ltd.
InventorTakahiro Ookubo
Life of this patent
Estimating the term…
Abstract
An impact tool which transmits an impact force to a tool bit supported by a casing includes: a cylinder which is attached to the casing and has an opening on one end side thereof to which the tool bit is inserted; an intermediate element which is provided in an inside of the cylinder so as to be able to move straight, has a projection projecting in a radial direction so as to regulate a range of the straight movement, and transmits the impact force to the tool bit; and passages and which communicate a space in an inside of the cylinder at a position nearer to the tool bit than the projection with the outside of the cylinder and penetrate through the cylinder in the radial direction.
Claims6
An impact tool which transmits an impact force to a tool bit supported by a tool body, comprising:
- a cylinder member which is attached to the tool body and has an opening on one end side thereof to which the tool bit is inserted;
- an impact force transmitting member which is provided in an inside of the cylinder member so as to be able to move straight, has a projection projecting in a radial direction so as to regulate a range of the straight movement, and transmits the impact force to the tool bit;
- and
- a passage which communicates the inside of the cylinder member at a position nearer to the tool bit than the projection in a direction of the straight movement of the impact force transmitting member with an outside of the cylinder member, and penetrates through the cylinder member in a radial direction.
Dependencies are inferred from the claim text.