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公开(公告)号：US20210101239A1
公开(公告)日：2021-04-08
申请号：US17124049
申请日：2020-12-16
Applicant: HUSQVARNA AB
Inventor： Mats Lawenius , Anders Reuterberg , Niklas Sundberg
Abstract: The present disclosure relates to a hand-held power tool (1) comprising a rotatable work tool (2) with a center (16) and a circumference (17) and having a direction of rotation (19). The power tool (1) further comprises a blade guard arrangement (8) that is arranged to shield a variable part of the rotatable work tool (2) and comprises a blade guard (12) and a swiveling cover part (11, 11′, 11″) attached to the blade guard (12). In a first position, the swiveling cover part (11, 11′, 11″) is positioned such that a first arc (A) of a circle is covered, following the blade guard (12), and running an angular distance along the circumference (17) after the blade guard (12), in the direction of rotation (19). The cover part (11) is moveable between the first position and a second position where a cutting operation of the rotatable work tool (2) along the first arc (A) of a circle is allowed. The cover part (11, 11′, 11″) is biased towards the first position. The present disclosure also relates to blade guard arrangements.
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公开(公告)号：US20210252656A1
公开(公告)日：2021-08-19
申请号：US17251966
申请日：2018-07-02
Applicant: HUSQVARNA AB
Inventor： Mats Lawenius , Anders Reuterberg , Niklas Sundberg
Abstract: The present disclosure relates to a hand-held power tool (1) comprising a rotatable work tool (2) with a center (16) and a circumference (17) and having a direction of rotation (19). The power tool (1) further comprises a blade guard arrangement (8) that is arranged to shield a variable part of the rotatable work tool (2) and comprises a blade guard (12) and a swiveling cover part (11, 11′, 11″) attached to the blade guard (12). In a first position, the swiveling cover part (11, 11′, 11″) is positioned such that a first arc (A) of a circle is covered, following the blade guard (12), and running an angular distance along the circumference (17) after the blade guard (12), in the direction of rotation (19). The cover part (11) is moveable between the first position and a second position where a cutting operation of the rotatable work tool (2) along the first arc (A) of a circle is allowed. The cover part (11, 11′, 11″) is biased towards the first position. The present disclosure also relates to blade guard arrangements.
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Patent Agency Ranking
公开(公告)号：US20170334005A1
公开(公告)日：2017-11-23
申请号：US15533257
申请日：2014-12-22
Applicant: HUSQVARNA AB
Inventor： Niklas Sundberg
CPC classification number: B23D47/12 , B23D45/16 , B23D47/00 , B23D59/00 , B27B5/29 , B28D1/04 , F16H7/14
Abstract: The present invention relates to a portable power tool (1) arranged for driving a rotatable cutting tool (2). The power tool (1) comprises a motor (5) and a transmission part (4) that is arranged to transfer power from the motor (5) to a tool holder (10), and comprises a first arm part (11; 11′) and a second arm part (12; 12′). The first arm part (11; 11′) comprises a first belt pulley (13) and the second arm part comprises a second belt pulley (14), the arm parts (11, 12; 11′, 12′) being slidably connected to each other. The belt pulleys (13, 14) are spaced apart by a certain distance (d-i, d2). The transmission part (4) further comprises a tensioning device (20) with a rod (21), a pre-tensioned resilient device (22), a linkage arrangement (25) and a rotatable part (26). The rotatable part (26) is rotatable between a first, released, state where the belt pulleys (13, 14) are spaced apart by a first distance (d-i), and a second, tightened, state where the belt pulleys (13,14) are spaced apart by a second distance (d2) that exceeds the first distance (d-i), the resilient device (22) being more compressed in the second state than in the first state.
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公开(公告)号：US20220314422A1
公开(公告)日：2022-10-06
申请号：US17605927
申请日：2020-11-25
Applicant: HUSQVARNA AB
Inventor： Fredrik Karlsson , Torbjörn Almqvist , Niklas Sundberg , Paul Johansson
IPC: B25F5/00 , B28D1/04 , H01M50/247 , H01M10/613 , H01M10/6235 , H01M10/6566 , H01M10/6556
Abstract: A hand-held electrically powered cut-off tool (100, 200, 800, 1000, 1900) comprising a first part (110) and a second part (120) arranged vibrationally isolated from each other, the first part (110) comprising an arm (116) arranged to support a cutting disc (130) and an electric motor (140) arranged to drive the cutting disc, the second part (120) comprising front (190) and rear (195) handles for operating the cut-off tool, and a battery compartment (150) for holding an electrical storage device (220, 1800) such as a battery arranged to power the electric motor (140), wherein one or more damping members (170, 1910) are arranged in-between the first part (110) and the second part (120), where at least one damping member (170, 1910) is formed in a resilient material associated with a damping coefficient.
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公开(公告)号：US10773369B2
公开(公告)日：2020-09-15
申请号：US15536937
申请日：2014-12-22
Applicant: HUSQVARNA AB
Inventor： Niklas Sundberg , Håkan Pinzani , Andreas Backström
Abstract: A cover (30) for concealing one or more components (20) of a power tool (10) presented herein. The cover (30) can include a through recess (52) between an inner surface (702) and an outer surface (708). The through-recess (52) being arranged for receiving a threaded member (80) protruding from the tool (10) and extending between an inner opening (704) at the inner surface (702) and an outer opening (706) at the outer surface (708). A threaded nut (60) for engaging the threaded member (80) for tightening the cover (30) to the tool (10) can be included. Additionally, the threaded nut (60) can be attached to the cover (30). The nut (60) can include a radially protruding portion (70) with a larger radius than the inner opening (704) and outer opening (706). The cover (30) can have opposing first and second shoulder portions (712, 714) surrounding the inner opening (704) and outer opening (706).
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公开(公告)号：US20180215031A1
公开(公告)日：2018-08-02
申请号：US15536937
申请日：2014-12-22
Applicant: HUSQVARNA AB
Inventor： Niklas Sundberg , Håkan Pinzani , Andreas Backström
Abstract: A cover (30) for concealing one or more components (20) of a power tool (10) presented herein. The cover (30) can include a through recess (52) between an inner surface (702) and an outer surface (708). The through-recess (52) being arranged for receiving a threaded member (80) protruding from the tool (10) and extending between an inner opening (704) at the inner surface (702) and an outer opening (706) at the outer surface (708). A threaded nut (60) for engaging the threaded member (80) for tightening the cover (30) to the tool (10) can be included. Additionally, the threaded nut (60) can be attached to the cover (30). The nut (60) can include a radially protruding portion (70) with a larger radius than the inner opening (704) and outer opening (706). The cover (30) can have opposing first and second shoulder portions (712, 714) surrounding the inner opening (704) and outer opening (706).
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公开(公告)号：US09975190B2
公开(公告)日：2018-05-22
申请号：US15533257
申请日：2014-12-22
Applicant: HUSQVARNA AB
Inventor： Niklas Sundberg
CPC classification number: B23D47/12 , B23D45/16 , B23D47/00 , B23D59/00 , B27B5/29 , B28D1/04 , F16H7/14
Abstract: The present invention relates to a portable power tool (1) arranged for driving a rotatable cutting tool (2). The power tool (1) comprises a motor (5) and a transmission part (4) that is arranged to transfer power from the motor (5) to a tool holder (10), and comprises a first arm part (11; 11′) and a second arm part (12; 12′). The first arm part (11; 11′) comprises a first belt pulley (13) and the second arm part comprises a second belt pulley (14), the arm parts (11, 12; 11′, 12′) being slidably connected to each other. The belt pulleys (13, 14) are spaced apart by a certain distance (d-i, d2). The transmission part (4) further comprises a tensioning device (20) with a rod (21), a pre-tensioned resilient device (22), a linkage arrangement (25) and a rotatable part (26). The rotatable part (26) is rotatable between a first, released, state where the belt pulleys (13, 14) are spaced apart by a first distance (d-i), and a second, tightened, state where the belt pulleys (13,14) are spaced apart by a second distance (d2) that exceeds the first distance (d-i), the resilient device (22) being more compressed in the second state than in the first state.
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