Manual impact driver
AssigneeDynomec Ltd
InventorDavid Brain
Life of this patent
Estimating the term…
Abstract
A manual impact driver for aiding the removal of a threaded fastening member from a structure, is disclosed having a longitudinal axis (L), the manual impact driver including a body having a first end and a second end and a sliding member configured to be coupled to the body at the second end. The impact driver is movable between a first configuration, upon impact at the first end of the body, a linear impact force is translated along the longitudinal axis (L) from the first end of the body to the sliding member and a second configuration, upon impact at the first end, the linear impact force produces a torque, about the longitudinal axis (L), at the sliding member. The impact driver is operable to switch between the configurations upon rotation, by a user, of the body with respect to the sliding member.
Claims14
A manual impact driver for aiding the removal of a threaded fastening member from a structure, the manual impact driver defining a longitudinal axis, the manual impact driver comprising:
- a body comprising a first end and a second end;
- and
- a sliding member configured to be coupled to the body at the second end,
- wherein the impact driver is movable between:
- a first configuration wherein, upon impact at the first end of the body, a linear impact force is translated along the longitudinal axis from the first end of the body to the sliding member;
- a second configuration wherein, upon impact at the first end, the linear impact force produces a torque, about the longitudinal axis, at the sliding member;
- and
- wherein the impact driver is operable to switch between the configurations upon rotation, by a user, of the body with respect to the sliding member,
- wherein the body comprises a through-hole extending from the first end to the second end of the body, the through-hole being shaped to define an internal shoulder located substantially towards the second end,
- wherein the sliding member is situated inside the through-hole at the second end of the body and defines a helical cavity,
- wherein the axis of the helical cavity is parallel to the longitudinal axis of the impact driver,
- wherein the body comprises a pin extending across the through-hole of the body, perpendicular to the longitudinal axis of the manual impact driver, the pin extending through the helical cavity of the sliding member and being fixed relative to the body,
- wherein when the manual impact driver is in the first configuration, the sliding member is abutted against the internal shoulder, and the pin of the body is located substantially at a second end of the helical cavity situated towards the first end of the body, such that upon impact at the first end, the body and the sliding member move together along the longitudinal axis of the manual impact driver, and
- wherein when the impact driver is in the second configuration, the sliding member is spaced from the internal shoulder, and the pin of the body is located substantially at a first end of the helical cavity situated towards the second end of the body.
Dependencies are inferred from the claim text.