Power lopper attachment
AssigneeTechtronic Cordless GP
InventorsAdam D’Angelo, Caleb Cassidy, Drew Girshovich, Nicholas Park
Life of this patent
Estimating the term…
Abstract
A lopper or lopper head attachment includes a primary gear, an engagement flag, and a dampened lag bolt. The primary gear may be in mechanical communication with a drive shaft. The secondary gear may be enmeshed with the primary gear, the secondary gear defining a lag groove. The engagement flag may be rotatably mounted to the secondary gear to move between an unengaged position and an engaged position. The dampened lag bolt may be received within the lag groove to move relative to the secondary gear between a permissive position permitting the engagement flag to the unengaged position and a restrictive position holding the engagement flag in the engaged position.
Claims20
A lopper comprising:
- a drive shaft extending along a primary axis;
- a primary gear in mechanical communication with the drive shaft and rotatable about the primary axis;
- a secondary gear enmeshed with the primary gear, the secondary gear defining a lag groove;
- an engagement flag rotatably mounted to the secondary gear to move between an unengaged position and an engaged position;
- a dampened lag bolt received within the lag groove to move relative to the secondary gear between a permissive position permitting the engagement flag to the unengaged position and a restrictive position holding the engagement flag in the engaged position;
- and
- a planetary gear assembly rotatable about the primary axis in mechanical communication with the primary gear to transfer rotation to the primary gear to motivate rotation of the primary gear about the primary axis.
A lopper head attachment comprising:
- a primary gear;
- a secondary gear enmeshed with the primary gear, the secondary gear defining a lag groove;
- an engagement flag rotatably mounted to the secondary gear to move between an unengaged position and an engaged position;
- a dampened lag bolt received within the lag groove to move relative to the secondary gear between a permissive position permitting the engagement flag to the unengaged position and a restrictive position holding the engagement flag in the engaged position;
- and
- a flag spring in biased engagement with the engagement flag to bias the engagement flag toward the unengaged position.
A lopper head attachment comprising:
- a primary gear;
- a secondary gear enmeshed with the primary gear, the secondary gear defining a lag groove;
- an engagement flag rotatably mounted to the secondary gear to move between an unengaged position and an engaged position;
- a dampened lag bolt received within the lag groove to move relative to the secondary gear between a permissive position permitting the engagement flag to the unengaged position and a restrictive position holding the engagement flag in the engaged position;
- and
- a dampened cylinder rotatable about an axis of the secondary gear,
- wherein the dampened lag bolt is fixed to the dampened cylinder and extends axially therefrom at a position radially offset from the axis of the secondary gear such that the dampened lag bolt is pivoted between the permissive position and the restrictive position.
Dependencies are inferred from the claim text.