초록 ▼

An angular attachment to a rotary and percussive power machine, such as a hammer drill, includes a rotary power input tubular member driven by a rotary part of the power machine, a tubular power output supported for rotation at an angle relative to the axis of rotation of the power input member and

An angular attachment to a rotary and percussive power machine, such as a hammer drill, includes a rotary power input tubular member driven by a rotary part of the power machine, a tubular power output supported for rotation at an angle relative to the axis of rotation of the power input member and including a holder for a rotary and percussive work tool. The tubular power input and output members are interconnected by an intermediate power transmission. A device for transmitting impacts from the percussive part of the power machine includes two guiding channels arranged in alignment with central bores of the tubular power input and output members and each enclosing at least one impact deviating element. The impact deviating elements are in sliding engagement with each other and with a corresponding coupling member arranged in respective contact bores of the power input and output members.

대표청구항 ▼

An angular attachment for transmitting and deviating output power of a rotary and percussive power machine, such as a percussive boring machine or a hammer drill, having a rotary power output means provided with an axially movable striking member, the attachment comprising a rotary power input membe

An angular attachment for transmitting and deviating output power of a rotary and percussive power machine, such as a percussive boring machine or a hammer drill, having a rotary power output means provided with an axially movable striking member, the attachment comprising a rotary power input member arranged for rotation about a first axis and being coupled to said rotary power output means; a rotary power output member arranged for rotation about a second axis forming an angle with said first axis and being provided with means for receiving a work too; and intermediate power transmission arranged between said rotary input and output members, said power transmission including means for transmitting rotary movement from said input member to said output member and means for transmitting impacts from said striking member to said work tool, said impact transmitting means consisting of two impact deviating elements both movably guided for movement between said input and output members, said impact deviating elements slidably engaging each other, and being coupled from different directions to said striking member and to said work tool.