EP4183518A1 - Machine-outil dotée d'un moteur disposé le long d'un axe de coupe - Google Patents

Machine-outil dotée d'un moteur disposé le long d'un axe de coupe Download PDF

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Publication number
EP4183518A1
EP4183518A1 EP21208697.9A EP21208697A EP4183518A1 EP 4183518 A1 EP4183518 A1 EP 4183518A1 EP 21208697 A EP21208697 A EP 21208697A EP 4183518 A1 EP4183518 A1 EP 4183518A1
Authority
EP
European Patent Office
Prior art keywords
machine tool
motor
tool
cutting axis
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21208697.9A
Other languages
German (de)
English (en)
Inventor
Helmut Specht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP21208697.9A priority Critical patent/EP4183518A1/fr
Publication of EP4183518A1 publication Critical patent/EP4183518A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B24B27/08—Grinders for cutting-off being portable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • the present invention relates to a machine tool with at least one accumulator as an energy source and at least one motor.
  • the machine tool is characterized in particular in that the motor is arranged essentially longitudinally to a cutting axis S of the machine tool and is arranged essentially on a first side of the cutting axis S, while the at least one accumulator is arranged essentially on a second side of the cutting axis S.
  • a particularly well-balanced machine tool can be provided by this arrangement of motor and accumulator.
  • the motor in the longitudinal direction of the machine tool, a positive drive for the tool of the machine tool can be made possible in a simple manner.
  • Cut-off grinders or angle grinders are known in the field of machine tools, with which cuts can be made in a substrate to be processed or which can be used to process the surface of a substrate.
  • Such cutting or angle grinders usually have a disc-shaped tool that is referred to as a cutting or grinding wheel.
  • accumulators Due to the increase in the available capacities in the area of accumulators ("accumulators"), more and more battery or accumulator-operated cut-off machines are being introduced onto the market; This is particularly the case for applications in which petrol cut-off grinders were previously used.
  • the motor is arranged transversely to the cutting direction or transversely to the cutting axis.
  • Such machine tools usually have a belt drive, with belt drives enabling good transmission of the rotational movement of the motor to the tool of the machine tool. This is particularly so because the torque to be transmitted from the engine is smaller than the torque that can be transmitted by the belt of the belt drive.
  • arranging the motor transversely to the cutting axis of the machine tool can make it more difficult to brake the machine tool, since the high braking torque may not be able to be transmitted sufficiently to stop the tool of the machine tool sufficiently quickly.
  • the object on which the present invention is based is to overcome the above-described deficiencies and disadvantages of the prior art and to provide a machine tool that is handy and compact, so that the machine tool can be used well, even over long periods of time times.
  • experts would welcome it if the braking of the machine tool could be improved and made safer.
  • the structure of the machine tool and the arrangement of the components within the machine tool should be as simple, compact and robust as possible, and the machine tool should have good ergonomics.
  • a machine tool is provided with at least one accumulator as the energy source.
  • the machine tool also has a motor.
  • the machine tool is characterized in particular in that the motor is arranged essentially longitudinally to a cutting axis S of the machine tool and is arranged essentially on a first side of the cutting axis S, while the at least one accumulator is arranged essentially on a second side of the cutting axis S.
  • a belt drive can be dispensed with. Rather, a positive drive of the tool of the machine tool can be made possible.
  • high braking torques can advantageously be transmitted quickly enough to stop the tool of the machine tool quickly enough and to reliably avoid injuries to the user of the machine tool. It has been shown that the braking of the tool can also be ensured particularly quickly with the invention when the tool rotates at high speeds in combination with short transmission times.
  • the motor and the at least one accumulator are on different, generally opposite sides of the cutting axis of the machine tool are available.
  • the motor of the machine tool can be on one side of the cutting axis, while the accumulator is on the other side of the cutting axis.
  • the machine tool has two or more accumulators, it is preferred within the meaning of the invention that all the batteries are essentially on one side of the cutting axis of the machine tool, while the motor is arranged essentially on the other side of the cutting axis.
  • the side of the machine tool on which the motor is arranged can be referred to as the "motor side” of the machine tool within the meaning of the invention, while the other side of the machine tool on which the at least one rechargeable battery is arranged is referred to as the "accumulator or battery side”. can be.
  • the wording “essentially” can also preferably mean that a small part of the volume of the object, such as a battery or motor, can protrude beyond the cutting axis, with the larger part of the volume of the battery or motor remaining on the battery or engine side of the machine tool is arranged.
  • the term "motor axis" is preferably to be understood as the axis of rotation of the moving parts of the motor of the machine tool.
  • the moving parts of the motor can in particular be the rotor of the motor, which is preferably designed as an electric motor.
  • the wording according to which the motor of the machine tool is arranged essentially longitudinally to its cutting axis S means, in the context of the invention, in particular that the motor is not arranged transversely to the cutting axis, as is customary in the prior art.
  • the object of the invention is thus distinguished from the prior art due to the arrangement of the motor in the longitudinal direction of the machine tool.
  • a central axis through the engine of the machine tool is substantially parallel to the cutting axis of the machine tool.
  • the cutting axis S of the machine tool preferably runs essentially centrally, ie centrally, through the machine tool.
  • the cutting axis of the machine tool runs in particular centrally, ie centrally, through a tool of the machine tool.
  • the cutting axis can lie in a plane that is spanned by the preferably disc-shaped tool of the machine tool.
  • the arrangement of the motor in the longitudinal direction of the machine tool has the advantage that a positive drive for the tool of the machine tool can be provided in a simple manner.
  • a positive drive for the tool of the machine tool is preferably referred to as a "direct drive” within the meaning of the invention.
  • In 4 shows how the motor of the machine tool is connected directly to the tool via the gearbox - in this case a separating, cutting or grinding wheel - with the motor being set up via the gearbox to drive the tool.
  • the proposed arrangement of the at least one battery and the motor within the machine tool also allows for a compact design of the machine tool, which advantageously makes do with a particularly short and handy main body.
  • the machine tool comprises a gearbox, the gearbox being arranged on the side of the cutting axis S of the machine tool on which the motor is also arranged.
  • the motor side of the machine tool can preferably include the gearbox of the machine tool, so that in this embodiment of the invention the motor and gearbox of the machine tool are arranged on one side of the cutting axis of the machine tool, while the at least one rechargeable battery is arranged on the other, preferably opposite side of the cutting axis is.
  • the transmission of the machine tool is not designed as a belt drive, but rather in a form-fitting manner.
  • the belt drive By avoiding or omitting the belt drive, an occurrence of undesired slippage can be prevented and particularly trouble-free and robust operation of the machine tool can advantageously be ensured.
  • devices and methods can be implemented particularly well in the machine tool, which enable protection against kickback events.
  • a kickback brake can be provided on the machine tool, with the kickback brake being designed to brake the tool of the machine tool or to switch off the machine tool as a whole when a kickback event is detected.
  • the power tool includes a main body in which the motor and the at least one rechargeable battery can be accommodated.
  • Examples of a possible arrangement of the accumulators within the main body of the machine tool are given in FIGS 1 and 2 pictured.
  • both such accumulators can be used which have, for example, a comparatively large volume and a large capacity.
  • the machine tool can preferably have interfaces and/or contact surfaces that can interact with different types of accumulators. This can be achieved, for example, in that the accumulators, which are used as an energy source in the proposed machine tool, have interfaces and/or contact surfaces that are designed to correspond to the interfaces and contact surfaces of the machine tool.
  • the capacity of the accumulators can be between 3 and 15 ampere hours (Ah), for example, and their volume can be between 700 and 1,500 cm 3 , depending on the capacity.
  • the invention proposes an arrangement of components for a preferably hand-held, battery-powered cut-off machine with at least one rechargeable battery, preferably two rechargeable batteries.
  • the position of the accumulators ("accumulators") and the interface for the accumulators is preferably selected in such a way that the accumulators are optimally protected against dust, metal chips, sparks or mud when cutting. Tests have shown that the batteries and their interface, as well as their contacts with the invention or the proposed Arrangement can be protected particularly effectively against environmental influences such as rain or moisture.
  • the proposed arrangement of the motor and at least one battery is optimized in particular with regard to robustness, compactness, ergonomics and assembly.
  • the at least one accumulator can advantageously be inserted from any desired direction, with the direction "from above” being particularly preferred.
  • the at least one accumulator is particularly easily accessible, so that it can be exchanged particularly quickly and easily if necessary.
  • the machine tool is a cut-off grinder.
  • the power cutter may include a rear portion formed, for example, by a main body and a protective frame.
  • the main body of the power cutter may be surrounded by a housing and may include a control unit, a drive and/or a drive train and/or a motor.
  • the protective frame can include a front, peripheral handle and a second, upper handle.
  • the front part of the machine tool is formed by its tool, which is a disc-shaped tool, in particular if the machine tool is designed as a cut-off grinder. In particular, it can be referred to as a cutting disc.
  • the spatial directions “front” and “rear” are defined by the front area of the machine tool formed by the tool and by the rear area of the machine tool formed by the main body, among other things.
  • the spatial areas “top” and “bottom” or the “top” and “bottom” of the machine tool are preferably defined by the top handle (“top”), which is preferably also referred to as the second handle within the meaning of the invention, and by the Protective frame, the underside of which preferably runs on the underside of the machine tool.
  • the machine tool comprises a first, circumferential handle, a second, upper handle and a protective frame for protecting the main body of the machine tool.
  • the first, circumferential handle preferably runs in the area of the transition between the front and rear areas of the machine tool and is usually gripped by the left hand of a right-handed person using the machine tool.
  • the first, circumferential handle can also be used to transport the machine tool. Due to the circumferential design of the first handle, the first handle offers effective impact protection on the sides of the machine tool, especially when the machine tool is at a falling would occur on the right or left side of the device.
  • the circumferential configuration of the first handle protects in particular the components of the machine tool arranged in the main body of the machine tool, such as the motor, drive or transmission, but also the accumulators. It is preferred within the meaning of the invention that a plane in which the first handle predominantly runs runs essentially orthogonally to a longitudinal axis of the machine tool.
  • the longitudinal axis which can be placed conceptually through the machine tool, runs in particular centrally through the device and extends from the front area of the machine tool in the direction of its rear area. It is preferred within the meaning of the invention that the plane in which the first handle predominantly runs is essentially perpendicular to the longitudinal axis of the machine tool.
  • the second, upper handle preferably runs essentially parallel to the virtual longitudinal axis of the machine tool.
  • This second handle is usually grasped by the right hand of a right-handed person when using the machine tool.
  • the upper handle protrudes in a rear spatial direction beyond the main body of the machine tool, so that the main body and its internal components are well protected against a fall and landing of the machine tool on the rear of the device.
  • An overhang is preferably formed by protruding the second handle beyond the rear of the main body of the machine tool.
  • the term “overhang” preferably describes the distance between a rear wall of the main body of the machine tool, which runs essentially vertically, and a point at the maximum distance from a rear part of the upper handle. This distance or overhang is, for example, in a range from 1 to 12 cm, preferably 3 to 9 cm and particularly preferably about 6 cm.
  • the second handle is arranged above the electronics of the machine tool and includes actuating switches for the machine tool on its upper side and/or its underside. Since the second handle of the machine tool is usually held by the right hand of a user, the machine tool can be operated particularly well by the provision of the actuating switch on the top and/or bottom of the second handle. Due to the preferred spatial proximity between the electronics of the machine tool and the at least one actuating switch in the second handle, transmission paths for control commands can be significantly shortened and the amount of wiring and interconnection within the device can be simplified or reduced. It is preferred within the meaning of the invention that the area of the second handle, which has the at least one actuating switch, is the central part of the upper handle.
  • a longitudinal axis running centrally through the middle part preferably does not run parallel to a surface on which the machine tool can be placed, but inclined at an angle of inclination of 10 to 30 degrees, preferably at an angle of inclination of 15 to 25 degrees and most preferably at an angle of inclination of about 20 degrees.
  • This inclination can significantly improve the ergonomics of the upper handle.
  • the center portion of the top handle is substantially perpendicular to a back portion of the top handle.
  • this rear part of the upper handle also runs inclined by the above-mentioned angle of inclination of approximately 20 degrees in relation to a rear wall of the main body of the machine tool running essentially vertically. Tests have shown that the inclination of the second handle of the machine tool significantly improves the ergonomics of the machine tool. It can also be preferred within the meaning of the invention that the machine tool has a rear handle.
  • the at least one rechargeable battery includes contacts with which it can be plugged into the power tool.
  • the power tool includes a corresponding connection arrangement with which the contacts of the at least one rechargeable battery can interact.
  • the machine tool preferably includes an interface with which the energy supply of the device or the energy output of the accumulator can be controlled. According to the invention, it can be preferred that the power tool includes an interface that controls the energy output of the battery. If the machine tool comprises two batteries, the machine tool can comprise two interfaces, i.e. one interface for each battery. In terms of the invention, it is particularly preferred that the accumulators can be connected to an electronic system of the machine tool via an interface and contacts.
  • the at least one accumulator or its accommodation space is arranged in the proposed machine tool in the housing of the main body of the machine tool, with the housing forming a sealed space which is particularly protected against dust and/or moisture, as well as moisture is tightly closed. This effectively prevents unwanted dust entering the battery compartment.
  • the machine tool has damping means in order to decouple the handles and the protective frame from vibrations that occur during operation of the machine tool.
  • the damping means preferably comprise springs, in particular three springs being provided in order to ensure that the handles and the To achieve protective frame from the vibrations that arise during operation of the machine tool.
  • a particularly well-balanced machine tool can be provided which, despite its weight, can be guided well and has good ergonomics when cutting having.
  • the invention relates to a battery-powered cut-off machine with two batteries that can be accessed, for example, from above.
  • the other components of the cut-off machine are preferably installed around the accumulators in such a way that the machine tool can be constructed in a simple manner and that the device has good ergonomics. It is preferred within the meaning of the invention that the cutting disk of the proposed cut-off grinder has a blade diameter of greater than 230 mm.
  • figure 1 shows a side view of a preferred embodiment of the proposed machine tool 1 in the left half of the figure and a rear view of a preferred embodiment of the proposed machine tool 1 in the right half of the figure.
  • the front area of the machine tool 1 is formed by a tool 25 which, in the case of the 1 shown cut-off grinder 1 is formed by a cut-off wheel 25 .
  • the tool 25 may be surrounded by a blade guard which may include a water inlet and a handle.
  • the rear area of the machine tool 1 is formed by a main body 4 which has a housing 6 .
  • the main body 4 of the machine tool 1 is surrounded by a protective frame 14 .
  • the machine tool shown has, for example, two accumulators 2, 3 as an energy source.
  • the machine tool comprises a front, circumferential handle 12 and an upper, second handle 13.
  • Operating switches 21 can be arranged on the upper, second handle 13, with which the machine tool 1 can be operated. These actuating switches 21 can be arranged in particular on the underside of the second handle 13 .
  • the machine tool 1 can also have a switch-on lock 30 , which can preferably be arranged on the upper side of the second handle 13 . It is preferred within the meaning of the invention that the actuating switch 21 can only be actuated if the switch-on lock 30 permits this. It is preferred within the meaning of the invention that the underside of the second handle 13 faces or faces the upper side 10 of the housing 6 of the machine tool 1 .
  • the machine tool 1 can include ribs 11 to protect against rain and splashing water. It is preferred within the meaning of the invention that the ribs 11 are set up to guide a flow of water, so that dirty water and/or rainwater does not get into the area of sensitive components of the machine tool 1 .
  • Sensitive areas of the machine tool 1 are, for example, the accumulators 2, 3 or their interfaces 18 or contacts 19 or their charge level indicator 31.
  • a protective plate 28 can be arranged on a front side 27 of the housing 6 of the machine tool 1, which protects the main body 4 and its internal components from dust, flying sparks, dirt or splashing water or metal chips.
  • a protective plate 28 can be arranged on a front side 27 of the housing 6 of the machine tool 1 are present that protects the main body 4 and its internal components from dust, flying sparks, dirty or splashed water or metal shavings.
  • the front side 27 of the housing 6 of the machine tool 1, as well as the protective plate 28, which is present on the front side 27 of the housing 6 of the machine tool 1, is also in particular in 2 shown. It is preferred within the meaning of the invention for the protective plate 28 to be attached to the front, circumferential handle 12 or for it to form part of this front handle 12 .
  • the trajectories of possible objects against which the protective plate 28 is intended to protect the hand-held power tool 1 are also in 2 drawn (see arrows below left).
  • the protective plate 28 is preferably made of metal or another fireproof material in order to be able to protect the machine tool 1 in particular from hot sparks.
  • the front side 27 of the housing 6 of the machine tool 1 faces or is arranged opposite the tool 25 of the machine tool 1 .
  • the interface 18 and the contacts 19 for the accumulators 2, 3 are also in 3 shown, which shows a side view of a preferred embodiment of the proposed machine tool 1 without accumulators 2, 3.
  • the electronics 20 of the machine tool 1 are arranged above the interface 18 and above the contacts 19 for the accumulators 2, 3, the electronics 20 being in close proximity to the actuating switches 21 on the second handle 13 of the machine tool 1 in order to provide transmission and communication paths to keep short. Provision is also made for the electronics 20 to be in close proximity to the accumulators 2, 3; this also to shorten the transmission and communication paths.
  • the electronics 20 are preferably held by a central carrier 32 which is preferably also referred to as a carrier unit 32 .
  • the carrier unit 32 is firmly connected to the motor housing 22 and is set up to support the electronics 20, the interfaces 18, the contacts 19, the accumulators 2, 3 and/or the damping elements 15 of the machine tool 1 record. It is particularly preferred within the meaning of the invention that the carrier 32 forms an inner structure for the main body 4 of the machine tool 1, which can carry or accommodate the components of the machine tool 1 mentioned.
  • the motor 5 of the machine tool 1 is shown, which is arranged in a front area of the main body 4 of the machine tool 1.
  • FIG. The engine 5 has an axis which is essentially orthogonal to a longitudinal axis 29 of the machine tool 1 .
  • the axis of the motor 5 of the machine tool 1 is preferably perpendicular to the longitudinal axis 29 of the machine tool 1.
  • this arrangement is described by the wording that the motor 5 of the machine tool 1 is transverse to the accumulators 2, 3 of the machine tool 1 is aligned.
  • the motor axis protrudes in 3 practically out of the picture plane.
  • the motor 5 is surrounded by a motor housing 22 .
  • the movement generated by the motor 5 of the machine tool 1 is transmitted to the tool 25 of the machine tool 1 via drive means.
  • a gear 23 of the machine tool is arranged between the drive means and the motor 5 and is preferably also arranged inside the motor housing 22 .
  • the cutting disk 25 of the power cutter 1 is connected to the main body 4 of the power cutter 1 via a cutting arm 24 .
  • FIG. 4 shows a schematic plan view of a preferred embodiment of the proposed machine tool 1.
  • the cutting axis S is shown, which divides the machine tool 1, with the side of the machine tool 1 that includes the motor 5 being referred to as the “motor side” of the machine tool 1 (upper half of the figure) , while the side of the machine tool 1 that has the at least one battery 2 is referred to as the “battery or battery side” of the machine tool 1 (lower half of the figure).
  • the motor 5 and the rechargeable batteries 2, 3 are accommodated in a main body 4 of the machine tool 1, with the main body 4 being able to be separated from the environment by a housing 6 of the machine tool 1.
  • a rotational movement of the motor 5 can be transmitted to the tool 25 of the machine tool 1 via a gear 23 .
  • the cutting axis S preferably runs essentially parallel to a plane that is spanned by the tool 25 of the machine tool 1 .
  • the cutting axis S preferably lies in this tool plane.
  • the gear 23 of the machine tool 1 is preferably arranged on the motor side of the machine tool 1 so that the gear 23 is advantageously located in close proximity to the motor 5 of the machine tool 1 .
  • the motor 5 of the machine tool 1 is arranged substantially longitudinally to a cutting axis S of the machine tool 1 and is present substantially on a first side of the cutting axis S .
  • the wording that “the motor 5 of the machine tool 1 is arranged essentially along a cutting axis S of the machine tool 1” preferably means in the context of the invention that an axis M of the motor 5 of the machine tool 1 is essentially parallel to the cutting axis S of the Machine tool 1 runs.
  • the cutting axis S is essentially perpendicular to an axis of rotation of the tool 25 of the machine tool 1, the axis of rotation of the tool being 25 in 4 represented by a vertical dashed line.
  • a further, third handle 33 can be arranged in a rear region of the machine tool 1, which is preferably referred to as the “rear handle”.
  • the rechargeable batteries 2, 3 can be inserted into the main body 4 of the machine tool 1 from behind, for example. However, other insertion directions for the batteries 2, 3 are also conceivable.
  • figure 5 shows a schematic side view of a preferred embodiment of the proposed machine tool 1.
  • the battery or rechargeable battery side of the machine tool 1 is shown in particular.
  • the tool 25 of the machine tool 1 is shown in a front area, while the rear handle 33 of the machine tool 1 is shown in a rear area becomes.
  • the main body 4 of the machine tool 1 is arranged in the center and is preferably surrounded by a housing 6 .
  • the at least one rechargeable battery 2 of the machine tool 1 can be accommodated in the main body 4 of the machine tool 1 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
EP21208697.9A 2021-11-17 2021-11-17 Machine-outil dotée d'un moteur disposé le long d'un axe de coupe Pending EP4183518A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21208697.9A EP4183518A1 (fr) 2021-11-17 2021-11-17 Machine-outil dotée d'un moteur disposé le long d'un axe de coupe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21208697.9A EP4183518A1 (fr) 2021-11-17 2021-11-17 Machine-outil dotée d'un moteur disposé le long d'un axe de coupe

Publications (1)

Publication Number Publication Date
EP4183518A1 true EP4183518A1 (fr) 2023-05-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21208697.9A Pending EP4183518A1 (fr) 2021-11-17 2021-11-17 Machine-outil dotée d'un moteur disposé le long d'un axe de coupe

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EP (1) EP4183518A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142825A (en) * 1991-04-25 1992-09-01 Floyd Kenneth R Hand-held elongated stock material cutter
EP3015224A1 (fr) * 2013-06-27 2016-05-04 Makita Corporation Outil électrique de vissage
WO2016096244A1 (fr) * 2014-12-16 2016-06-23 Robert Bosch Gmbh Système de machine-outil
EP3216567A1 (fr) * 2015-11-02 2017-09-13 Black & Decker Inc. Scie à découper sans fil
US10994404B2 (en) * 2013-02-01 2021-05-04 Makita Corporation Electric tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142825A (en) * 1991-04-25 1992-09-01 Floyd Kenneth R Hand-held elongated stock material cutter
US10994404B2 (en) * 2013-02-01 2021-05-04 Makita Corporation Electric tool
EP3015224A1 (fr) * 2013-06-27 2016-05-04 Makita Corporation Outil électrique de vissage
WO2016096244A1 (fr) * 2014-12-16 2016-06-23 Robert Bosch Gmbh Système de machine-outil
EP3216567A1 (fr) * 2015-11-02 2017-09-13 Black & Decker Inc. Scie à découper sans fil

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Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR