Husqvarna Ab

Håkan Pinzani

Pär Carlsson

Ulf Johan Petersson

Bengt A Bergvall

Johan Berg

Adam Vidlund

Anders Bennehag

Paulo Varella

Ove Donnerdal

Niklas Sundberg

Mari Albinsson

Bengt Allan Bergvall

Andreas Backström

Andreas Sandbacka

Paulo Varela

A cutting and dust or slurry collecting assembly that comprises: a) a circular saw blade () b) a blade guard () c) a cover device (), and the cover device () has a front end (), a rear end (), a top surface (), a bottom surface (), elongated sidewalls (), and a longitudinal passage () for the saw blade, d) the blade guard () and the cover device () being pivotally connected or connectable to one another via a hinge () in or adjacent to a lower rear corner of the blade guard (), such that the cover device and the blade guard can be turned in relation to each other, e) a discharge member () is provided at the rear of said hinge and has an outlet () which can be connected to a vacuum source, f) a connection member () connects the discharge member () with at least one of the longitudinal passage () and the cut created rear of the longitudinal passage, g) that the direction of rotation of the saw blade () is such that a circumferential part of the blade which has passed beyond the bottom surface of the cover device will move in a direction upwards-rearward towards the bottom surface In particular a rear arm distance (LR) between the hinge () and the rear end () is bigger than 0.2 R and preferably bigger than 0.25 R, thereby enabling a turning of the cover device () by pressing the rear end () towards the structure to be cut.

Cutting and dust or slurry collecting assembly and working machine

A cover () for concealing one or more components () of a power tool () presented herein. The cover () can include a through recess () between an inner surface () and an outer surface (). The through-recess () being arranged for receiving a threaded member () protruding from the tool () and extending between an inner opening () at the inner surface () and an outer opening () at the outer surface (). A threaded nut () for engaging the threaded member () for tightening the cover () to the tool () can be included. Additionally, the threaded nut () can be attached to the cover (). The nut () can include a radially protruding portion () with a larger radius than the inner opening () and outer opening (). The cover () can have opposing first and second shoulder portions () surrounding the inner opening () and outer opening ().

Fastener retention device for a guard cover

An electric power saw/cutter includes a rotatable saw structure, a rear handle with a switch/speed control, a front handle, and a drive unit for rotating the saw structure. The drive unit includes a saw structure drive arrangement to which the saw structure is attachable, a transmission for driving the saw drive arrangement, an electric motor for driving an input shaft of the transmission, and a support structure for holding/carrying the saw structure drive arrangement. The transmission and the electric motor may be characterized in that the front handle and the rear handle are directly connected to each other to form a handle unit, which unit is resiliently connected to the drive unit, so that vibrations from the saw blade and drive unit will be reduced in the handle unit.

Electric cutting system

A cutting and dust or slurry collecting assembly that includes: a circular saw blade, a blade guard, and a cover device. The cover device has a front end, a rear end, a top surface, a bottom surface, elongated sidewalls, and a longitudinal passage for the saw blade. The blade guard and the cover device are pivotally connected or connectable to one another via a hinge in or adjacent to a lower rear corner of the blade guard. A discharge member is provided at the rear of the hinge and has an outlet which can be connected to a vacuum source. A connection member connects the discharge member with the longitudinal passage and the cut created rear of the longitudinal passage.

An electric power saw/cutter includes a rotatable saw structure, a rear handle with a switch/speed control, a front handle and a drive unit for rotating the saw structure. The drive unit itself including a saw structure drive arrangement to which the saw structure is attachable, a transmission for driving the saw drive arrangement, an electric motor for driving an input shaft of the transmission, and a support structure for holding/carrying the saw structure drive arrangement, the transmission and the electric motor. The front handle and the rear handle are directly connected to each other to form a handle unit, which unit is resiliently connected to the drive unit, so that vibrations from the saw blade and drive unit will be reduced in the handle unit.

A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools rotatable about an axis. The tools define maximum tool arrangement boundaries along the axis. A driving arrangement, at an axial location between the first and second tools, supports the first and second tools for rotation and transfers driving force. A radially outer periphery of the driving arrangement is at a radius less than a radius of a peripheral cutting edge portion of the first tool and less than a radius of a peripheral cutting edge portion of the second tool.

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Göteborg, Sweden

Håkan Pinzani