Husqvarna Ab

Garrett Sherman

Jeffrey C Hickman

Ni Zugen

David Lawrence Estey

Chad Jones

Li Li

E Arnold Fie, Ii

Yang Ming

Robert Walter Schriever

Ming Yang

Ryan Casey Mitchell

Victor Stramenga

Ii E Arnold Fie

A multi-tool () includes a power head () including a power head housing () having a handle () operably coupled thereto, a tool attachment () configured to perform a work function, the tool attachment () being alternately separable from and operably coupled to the power head (), a motor () disposed in the power head housing (), a battery () configured to be operably coupled to the motor () to selectively power the motor (), a drive provider portion () disposed at the power head (), and a drive receiver portion () disposed at the tool attachment (). The drive provider portion () includes a driving portion () of a shaft () operably coupled to the motor (), and the drive receiver portion () includes a driven portion () of the shaft (). The driving portion (), the drive receiver portion (), and the motor () share a common axis (). The power head () receives the battery () at an opposite end of the power head housing () relative to an end of the power head housing () at which the motor () is located, and the handle () extends from a first portion of the power head housing () above the motor () to a second portion of the power head housing () above the battery ().

Power head configured to operate multiple tool heads with universal rotary device

A multi-tool () includes a power head () including a power head housing () having a handle () operably coupled thereto, a tool attachment () configured to perform a work function, the tool attachment () being alternately separable from and operably coupled to the power head (), a motor () disposed in the power head housing (), a battery () configured to be operably coupled to the motor () to selectively power the motor (), a power head mating interface () including structures disposed at the power head () for defining a physical mating assembly, a drive power transfer assembly and an electronic assembly, and a tool mating interface () including structures disposed at a housing of the tool attachment () for defining the physical mating assembly, the drive power transfer assembly and the electronic assembly. The structures disposed at the power head () and the structures disposed at the housing of the tool attachment () for defining the physical mating assembly are configured to contact each other before the structures disposed at the power head () and the structures disposed at the housing of the tool attachment () for defining the drive power transfer assembly contact each other responsive to operably coupling of the power head mating interface () to the tool mating interface (). The structures disposed at the power head () and the structures disposed at the housing of the tool attachment () for defining the drive power transfer assembly are configured to contact each other before the structures disposed at the power head () and the structures disposed at the housing of the tool attachment () for defining the electronic assembly contact each other responsive to operably coupling of the power head mating interface () to the tool mating interface ().

Mating interface for a power head configured to operate multiple tool attachments

A blower () includes a blower attachment housing (), a power head housing () having a handle () operably coupled thereto, a motor () disposed in the power head housing (), a fan () disposed in the blower attachment housing (), a battery (), and an intake chamber () disposed between the motor () and the fan () to enable the air to enter the blower () between the motor () and the fan ().

Blower with improved balance and construction

Herein a chainsaw () is disclosed comprising a guide bar () and a chain () moveably arranged around the guide bar (). The chainsaw () comprises an motor () comprising a motor shaft (), wherein the motor () is configured to drive the chain () via the motor shaft (). The chainsaw () further comprises a tension estimation arrangement () configured to sense a load on the motor shaft (), and configured to estimate the tension of the chain () around the guide bar () on the basis of the sensed load on the motor shaft (). The present disclosure further relates to a method of estimating tension of a chain () of a chainsaw ().

Chainsaw and method

Human machine interface for outdoor power equipment

Growing community of inventors

Huntersville, NC, United States of America

Garrett Sherman