Husqvarna Ab

Aktiebolaget Electrolux

Jörgen Johansson

Jasmin Insanic

Fredrik Edholm

Christian Liliegård

Helena André

Magnus Henriksson

Jonas Tibbelin

Mikael Adolfsson

Eric Lennings

Stefan Stark

Lars Ederfors

Niklas Sarius

Par B Martinsson

Norbert Rosenpek

Janarne Wetterheim

Bengt Ahlund

Karl Ljungquist

Kent Ludwigsson

Cecilia Niva

A height adjustment device may include a height adjustment screw having outer threads and being oriented substantially vertically and arranged rotatably in relation to a chassis, and an adjustment nut connected to a bracket and comprising inner threads for engagement with the threads of the adjustment screw, such that a rotary movement of the height adjustment screw results in a vertical linear movement of the bracket. The adjustment nut may include a first part and a second part which together enclose the adjustment screw, and the first part may be adapted to be attached to the second part. A robotic mower may include the height adjustment device.

Height adjustment device and robotic mower comprising a height adjustment device

The present disclosure relates to a method () for production of a chainsaw guide bar (). The method comprises the steps of providing () an elongated core plate () extending along a plane, and, in said plane has a length (Lc) in the longitudinal direction (D), and a width (Wc) perpendicular to the longitudinal direction (D), comprising a pair of opposite long side edges () and at least one detachable element () that extends along at least one of the long side edges of the core plate. Arranging () a side plate () on each side of the core plate (), thereby forming a sandwiched structure and joining () of the plates () for formation of an elongated guide bar (), wherein the at least one detachable element () remains attached to the core plate (). The disclosure also relates to a guide bar () for a chainsaw (). The guide bar () comprises a laminated structure of at least three layers comprising a first side plate (), a second side plate (), and a core plate () disposed between said first side plate () and said second side plate (), wherein the core plate () is provided with at least one detachable element (). The disclosure also relates to an alternative method () of production of a chainsaw guide bar ().

Methods for production of a guide bar for a chainsaw and a guide bar for a chainsaw

A sealing member (), for waterproof sealing of a volume, comprises a hollow, generally cylindrical body and a sealing area () at the respective axial ends thereof. At least one sealing area () comprises a first radially extending portion () and a second portion () extending in a reverse direction partly overlapping the first portion. The second portion () has a free end and is arranged for pressing towards the first portion (), thereby forming a seal with the first portion (). A sealing system comprises a sealing member () as above, a sealing seat () for abutment against the sealing member (), and a counterpart surface (), for pressing the sealing member () against the sealing seat (). The sealing seat () comprises an inclined surface (). A work tool () comprising the above-mentioned sealing system has at least one sealing area () of the sealing member () pressed between a housing () and a chassis () of the work tool ().

Sealing member and sealing system comprising the sealing member

A chainsaw () includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar () around which a chain is rotatable. The guide bar () includes a first side plate () and a second side plate () facing each other and extending away from the housing () to a nose of the guide bar (), the first and second side plates (and) each including an inner sidewall (and) facing inwardly toward each other. Each of the inner sidewalls (and) includes a recessed portion () at which material of the inner sidewalls (and) has been removed.

Lightweight chainsaw guide bar

A chainsaw () includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar () around 5 which a chain () is rotatable. The guide bar () includes first and second side plates (), a core () and a tension indicator (). The first and second side plates () each face other and extend away from a housing () to a nose. The core () is disposed between the first side plate () and the second side plate (). The tension indicator () is provided at the core () and is visible at at least one of the first side plate() or the second side plate (). The tension indicator () is configured to indicate a chain tension based on a position of the guide bar ().

Chain and bar cassette and chainsaw guide bar with tension indicator

A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade coupler operably coupled to the rotatable shaft. The blade coupler may define a blade channel configured to at least partially enclose four sides of a blade inserted therein. The blade coupler may include a support base and a sleeve that is movable relative to the support base based on a compression state of a biasing element. The blade may be insertable into the blade channel by orienting the blade to apply a force to sidewalls of the sleeve to shift the biasing element to a compressed state and rotating the blade proximate to the support base to enable the biasing element to shift to an extended state in which sidewalls of the sleeve define sidewalls of the blade channel.

Quick-coupling for mower blades

A chainsaw () includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar () around which a chain is rotatable. The guide bar () includes a laminated structure in which different ones of the layers of the laminated structure are comprised of different materials.

A chainsaw () includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar () around which a chain is rotatable. The guide bar () includes first and second side plates (and), a sprocket wheel (), first and second shims (and), and first and second sealing members (and). The first and second side plates (and) each face other and extend away from a housing () to a nose. The sprocket wheel () is provided at the nose between the first and second side plates (and). The first and second shims (and) are disposed between the first and second side plates (and), respectively, and corresponding ones of first and second sides of the sprocket wheel (). The first sealing member () is disposed between the first shim () and the first side of the sprocket wheel (). The second sealing member () is disposed between the second shim () and the second side of the sprocket wheel ().

Chainsaw guide bar roller bearing seal

A height adjustment arrangement () for a lawn mower () for changing a cutting height is provided. The height adjustment arrangement comprises a respective link arm () pivotally arranged at opposite sides of the chassis (), and a transversal rod () extending between the link arms () comprising wheel attachment ends () configured to protrude outwardly from the respective link arm (). The height adjustment arrangement further comprises a locking arrangement () for releaseably locking at least one of the link arms () in a pivot position. The transversal rod comprises connection portions () which are essentially parallel to the link arms and releasably connected thereto such that pivoting of the link arm () causes the wheel attachment ends () to synchronously change the cutting height of the lawn mower chassis ().

Height adjustment arrangement for a lawn mower

A walk-behind lawn mower comprising a body with an engine driving a cutting blade, and a handle assembly which is pivotably connected to the body. The lawn mower furthermore comprises a handle control arrangement for controlling pivotal movement of the handle assembly relative to the body, between a working position and a pivoted position. The handle control arrangement comprises a locking member, selectively displaceable between an open state in which the locking member allows pivotal movement of the handle assembly from the working position to the pivoted position, and a locked state in which the locking member inhibits pivotal movement of the handle assembly from the working position to the pivoted position. The handle control arrangement also comprises an actuating member operatively connected to the locking member and controlling the state of the locking member. The actuating member is also arranged to control activation and deactivation of a device arranged to inhibit rotation of the cutting blade of the walk-behind lawn mower.

Handle control arrangement of a walk-behind lawn mower

A folding arrangement of a walk-behind power tool includes a hinge having a first hinge part and a second hinge part pivotally interconnected about a hinge axis, so as to enable pivoting of the hinge between a folded position and a closed position. The first hinge part has a first opening for passing through a cable harness. The second hinge part has a second opening for receiving the cable harness. The first and second openings are facing each other when the hinge is in the closed position. At least one of the first and second hinge parts has a protruding portion for directing the cable harness towards the first and second opening when the hinge pivots from the folded position to the closed position.

Folding arrangement for a handle assembly of a walk-behind power tool

A walk behind garden tool chassis including a first chassis part and a second chassis part. The first chassis part is arranged to receive an engine of the garden tool, and to receive a first wheel assembly of the garden tool. The second chassis part is arranged to receive a handle assembly of the garden tool, and to receive a second wheel assembly of the garden tool. The first and second chassis parts are interconnected by vibration dampers.

Walk behind garden tool chassis

A front baffle assembly () for a lawn mower () is provided. The front baffle assembly () is adapted for attachment to a lawn mower chassis (), and comprises a stopper () configured to abut against an upper side of the chassis () and a front baffle () configured to abut against a lower side of the chassis (). The front baffle assembly () comprises a catch element () which protrudes downwardly from the stopper () and is arranged to extend through the chassis () and beyond a lower side of the front baffle (). The front baffle assembly () comprises a front axle () arranged to be received between the catch element () and the lower side of the front baffle () to clamp the chassis () between the stopper () and the front baffle ().

Front baffle assembly for a lawn mower

A lawn mower deck may include a housing for a cutter and a protruding portion extending from a base of the housing. An attachment portion extends from the protruding portion back toward the housing and is fastened to the housing at a location separate from the protruding portion. The housing, the protruding portion and the attachment portion are formed from one piece of material.

Growing community of inventors

Jönköping, Sweden

Jörgen Johansson