EP4201596A1 - Outil à main - Google Patents

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Publication number
EP4201596A1
EP4201596A1 EP22212565.0A EP22212565A EP4201596A1 EP 4201596 A1 EP4201596 A1 EP 4201596A1 EP 22212565 A EP22212565 A EP 22212565A EP 4201596 A1 EP4201596 A1 EP 4201596A1
Authority
EP
European Patent Office
Prior art keywords
attachment cap
power tool
light
designed
hand
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
EP22212565.0A
Other languages
German (de)
English (en)
Inventor
Steffen Weber
Balazs Balog
Eva Stoll
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP4201596A1 publication Critical patent/EP4201596A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/18—Devices for illuminating the head of the screw or the nut
    • 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
    • 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
    • B25F5/021—Construction of casings, bodies or handles with guiding devices

Definitions

  • the present invention relates to an attachment cap for a hand-held power tool according to the preamble of claim 1.
  • a top cap for a hand-held power tool in particular for a screwdriver, is already known, which is provided to protect an interface for tool adapters and which is arranged detachably on a tool output, the top cap comprising a light guide element.
  • the present invention is based on an attachment cap for a handheld power tool, in particular a cordless screwdriver, with at least one connecting element for detachable connection to an interface of the handheld power tool, with at least one light guide element for conducting light from a light-emitting element of the handheld power tool and with an at least partially circumferential contact element by means of the the attachment cap can be arranged on the hand-held power tool.
  • An optically conductive ring lens that can be arranged around a tool holder of the hand-held power tool and is designed to illuminate a work area is proposed.
  • the invention already provides an attachment cap for a hand-held power tool, with which an interface of the hand-held power tool can be protected and at the same time a work site can be illuminated in a focused manner.
  • the attachment cap has the annular lens.
  • the handheld power tool includes a handheld power tool housing, which is a housing of the handheld power tool, in particular the cordless screwdriver, and is at least designed to at least partially accommodate a drive unit.
  • the hand-held power tool housing can also be provided to at least partially accommodate the tool holder, an actuating element, an element for selecting the direction of rotation, a control unit and/or an energy supply unit.
  • the hand-held power tool housing can have at least two housing elements.
  • the housing elements can be connected to one another, with the connection taking place in particular via a non-positive and/or positive connection.
  • the housing elements can be designed, for example, as housing half-shell parts, as a front shell part, as a cover shell part, etc. It is also conceivable that the hand tool housing includes more than two housing elements.
  • a “handheld power tool” is to be understood in particular as a handheld machine, preferably a battery-powered handheld power tool.
  • the hand-held power tool can be a screwdriver, a drill/screwdriver, an impact wrench, an impact wrench, a drywall screwdriver, an angle drill or a hammer drill.
  • a mains-operated handheld power tool is also conceivable.
  • the drive unit of the hand-held power tool also has a gear unit.
  • the gear unit is designed to adapt, in particular to reduce and/or increase, a speed of the drive motor.
  • the gear unit can be designed as a planetary gear, it also being conceivable for the planetary gear to be shiftable.
  • the drive motor of the hand-held power tool is designed to provide a torque for driving a main output shaft.
  • the main output shaft preferably runs essentially parallel to a main working direction of the hand-held power tool.
  • the main output shaft of the drive unit represents a tool axis.
  • the main output shaft can have the tool holder for accommodating an insert tool.
  • the tool holder as a Interior shot, in particular a polygonal interior shot, especially a hexagonal interior shot, be formed. It is also conceivable that the tool holder of the main output shaft is designed as an external holder.
  • the tool holder of the main output shaft is an output of a main output train of the handheld power tool and is provided for transmitting a torque and/or a rotary movement to the insert tool.
  • the hand-held power tool in particular the cordless screwdriver, includes the energy supply unit for supplying energy to the drive unit, in particular to the drive motor.
  • the handheld power tool is preferably a battery-powered handheld power tool that can be operated using at least one rechargeable battery, in particular using a handheld power tool battery pack. As a result, the energy is then provided by the energy supply unit by means of the at least one rechargeable battery.
  • a “handheld power tool battery pack” should be understood to mean a combination of at least one battery cell and a battery pack housing.
  • the hand tool battery pack is advantageously designed to supply energy to commercially available battery-powered hand tools.
  • the at least one battery cell can be designed as a Li-ion battery cell with a nominal voltage of 3.6 V, for example.
  • the at least one rechargeable battery is arranged fixed to the housing essentially within the hand-held power tool housing, in particular attached, in particular mounted.
  • the at least one battery it is also possible for the at least one battery to be designed as a replaceable battery, in particular as a replaceable hand-held power tool battery pack.
  • the hand-held power tool can be a mains-operated hand-held power tool, which can be connected to an external mains socket by means of a power supply cable.
  • the possible configurations of the external mains socket and the associated available voltages are well known to those skilled in the art.
  • the present invention is not limited to the type of power supply unit.
  • the direction of rotation selection element is designed to set at least one direction of rotation of the drive unit.
  • the direction of rotation selection element is provided between a clockwise direction of rotation and a counterclockwise direction of rotation to be switchable.
  • the direction of rotation selection element can also have a direction of rotation neutral position in which the drive unit cannot be operated in any direction of rotation.
  • the direction of rotation selector element can be designed as a direction of rotation selector switch.
  • the direction of rotation selection element is also provided for forwarding a signal for selecting the clockwise direction of rotation, the counterclockwise direction of rotation and the neutral position of the direction of rotation to the control unit.
  • the control unit of the hand-held power tool is intended to control and/or regulate the drive unit, in particular the drive motor.
  • the control unit receives signals from the signal generator unit.
  • the actuation unit is designed to be actuated by a user and to forward a mechanical actuation to the signal generator unit.
  • the signal transmitter unit converts the mechanical actuation into a signal, in particular an electrical signal.
  • the signal transmitter unit then transmits the signal to the control unit.
  • the control unit receives this signal, processes it and controls and/or regulates the drive unit on the basis of the signal from the signal generator unit.
  • the hand-held power tool preferably has an end face in which the lighting element is arranged in such a way that the mounted attachment cap covers the lighting element.
  • a through-hole is preferably provided in the hand-held power tool housing and/or in the interface of the hand-held power tool, in or behind which the light-emitting element is arranged.
  • the lighting element can be arranged in a housing interior of the hand-held power tool in such a way that the housing does not have any disruptive, protruding housing elements for arranging the lighting element.
  • the lighting element is arranged in a direction pointing away from the drive motor in the area of the tool holder. It is possible that more than one lighting element is provided, namely two or three.
  • the lighting element can be in the form of an LED or a light bulb, for example.
  • the light-emitting element can be activated by means of the actuating element.
  • the lighting element is also activated, for example, in addition to the drive unit.
  • the light-emitting element emits light.
  • the interface of the handheld power tool is also located on the front side.
  • the interface is designed at least for connection to a tool adapter such as an angle adapter, an eccentric adapter or a torque adapter.
  • the interface is designed for connection to the attachment cap.
  • the interface here has, for example, a groove formed in the circumferential direction of the tool axis.
  • the interface has a plug-in ring.
  • the interface is arranged around the tool holder in the circumferential direction, so that the interface at least partially encloses the tool holder.
  • the attachment cap can, for example, be shaped like a dome, a bowl, a pot, a cone or a truncated cone.
  • the attachment cap is designed as a hollow body and has an interior space.
  • the attachment cap can be releasably connected to the interface by means of the connecting element.
  • the attachment cap can be detachably connected to the interface in such a way that the attachment cap can be reversibly connected and disconnected to the interface.
  • the connecting element is arranged and/or formed in the interior of the attachment cap.
  • Four connecting elements are provided here by way of example, with more than four or fewer than four connecting elements also being conceivable.
  • the connecting element can be designed, for example, as a latching element, in particular a latching hook.
  • the latching element is designed to form a latching connection with the groove of the interface. As soon as the latching element forms the latching connection with the groove, acoustic feedback can be provided by a latching noise.
  • the top cap has a top cap axis.
  • the attachment cap axis can be an axis of symmetry of the attachment cap.
  • the attachment cap axis can be coaxial with the tool axis.
  • the attachment cap has the light guide element for conducting light from the lighting element.
  • the light guide element is designed to receive the light from the lighting element and to forward the light.
  • the light guide element is designed to be transparent, for example.
  • the light guide element can be encapsulated by the attachment cap. In this case, the light guide element can be arranged in the circumferential direction of the attachment cap, relative to the attachment cap axis.
  • two light guide elements are provided here, with more than two light guide elements also being conceivable are.
  • the two light guide elements are arranged opposite one another.
  • the light guide element can, for example, be cylindrical, hollow-cylindrical, in the form of a strip, in the form of a pin or the like.
  • the attachment cap can have at least one recessed grip.
  • Two recessed grips are provided here by way of example, it being possible for the two recessed grips to be arranged opposite one another.
  • the recessed grip is intended to be gripped by the user to more easily connect and disconnect the attachment cap from the interface.
  • the recessed grip can be formed on the attachment cap in the circumferential direction of the attachment cap axis.
  • the recessed grip can be offset to the light guide element in the circumferential direction on the attachment cap.
  • the two recessed grips and the two light guide elements can be offset from one another in the circumferential direction of the attachment cap axis on the attachment cap.
  • the light guide element is arranged between the ring lens and the contact element.
  • the light guide element can be arranged on the end face of the hand-held power tool in such a way that the light guide element is arranged so that it essentially overlaps axially with respect to the lighting element. In this way, the light that can be emitted from the light-emitting element can be emitted in the direction of the light guide element.
  • the contact element is arranged at least partially circumferentially on a free end of the attachment cap.
  • the contact element can be arranged on the attachment cap in the circumferential direction of the attachment cap.
  • the contact element rests against the end face of the hand-held power tool.
  • the contact element can be designed, for example, as a contact edge, a contact web or a contact projection.
  • the contact element can, for example, be circular, elliptical or polygonal.
  • the contact element In the connected state, the contact element can at least partially enclose the interface of the hand-held power tool.
  • the contact element can be arranged coaxially to the ring lens on the attachment cap, with the contact element and the ring lens being arranged opposite one another on the attachment cap.
  • the contact element can be connected to the attachment cap in a positive, non-positive and/or material connection. It is also possible for the attachment cap to form the contact element so that they are in one piece.
  • the ring lens can be arranged in the circumferential direction around the tool holder of the hand-held power tool.
  • the ring lens is optically conductive to illuminate the work site.
  • the ring lens can be transparent.
  • the ring lens can, for example, be ring-shaped, disc-shaped, C-shaped, plate-like or the like.
  • the annular lens is arranged at a further free end of the attachment cap. The free end and the other free end are arranged here opposite one another on the attachment cap.
  • the annular lens can be designed to focus, so that the light from the lighting element can be focused on the work site.
  • the annular lens is optically conductively connected to the at least one light guide element.
  • the light guide element is designed to optically guide the light from the lighting element to the annular lens. It is conceivable that an optical line between the light guide element and the ring lens is made possible by means of a line element.
  • the light guide element and the annular lens can be optically conductively connected to one another directly and substantially immediately. It is conceivable that the light guide element and the annular lens are designed in one piece. For example, two light guide elements and the annular lens can be designed in a shape based on a wing nut, so that the two light guide elements are connected to the annular lens opposite one another.
  • the annular lens has an opening, with the tool holder being able to be guided at least partially through the opening.
  • the opening can be circular, elliptical or polygonal, for example.
  • the opening can be formed substantially centrally in the annular lens.
  • the opening allows the annular lens to be arranged circumferentially around the tool holder.
  • the ring lens can at least partially enclose the tool holder.
  • the tool holder can be passed through the opening of the annular lens at least partially and at least in sections.
  • the tool holder can reach through the opening at least partially.
  • the attachment cap has a receptacle at least for the annular lens, which is designed to connect the annular lens to the attachment cap.
  • the recording can be designed to complement the annular lens.
  • the receptacle can be designed, for example, in the manner of a plate, in the manner of a pot, in the manner of a bowl, as an opening or the like.
  • the receptacle can also accommodate the at least one light guide element.
  • the receptacle can form a positive, non-positive and/or material connection with the ring lens and/or the light guide element. It is also conceivable that the attachment cap is overmoulded around the ring lens and/or the light guide element, so that the receptacle and the ring lens and/or the light guide element are connected to one another with a material fit.
  • the attachment cap has at least one anti-twist element formed in the circumferential direction, which is designed to arrange the attachment cap on the interface in a non-rotatable manner.
  • the anti-twist element can be positively, non-positively and/or materially connected to the attachment cap. It is also conceivable that the attachment cap forms the anti-rotation element, so that the attachment cap and the anti-rotation element are in one piece.
  • the anti-rotation element can be arranged on the contact element in the circumferential direction.
  • the anti-twist element can be arranged offset in the circumferential direction with respect to the light guide element on the contact element.
  • the anti-twist element can be arranged, for example, offset by 90° to the light guide element on the contact element. It is also conceivable that the contact element forms the anti-rotation element.
  • the anti-twist element can be arranged axially offset to the recessed grip on the attachment cap.
  • two anti-rotation elements are provided here, with more than two anti-rotation elements also being possible.
  • the anti-rotation element can be designed, for example, in the form of a pin, a web, an edge or a projection. It is also conceivable that the anti-twist element is designed in the form of a magnet.
  • the anti-rotation element is designed to form a connection, in particular a mechanical connection, with an anti-rotation receptacle of the hand-held power tool.
  • the anti-twist mount can be designed, for example, in the manner of a recess, pot-like, shell-like or with an undercut. It is also possible for the insurance holder to be designed as a magnet, for example.
  • the anti-rotation mount is designed to be complementary to the anti-rotation element.
  • the anti-twist receptacle can be arranged in the circumferential direction relative to the tool receptacle on the end face and offset in the circumferential direction relative to the lighting element.
  • the anti-rotation element and the anti-rotation receptacle can form a positive and/or non-positive connection, with the connection being reversibly detachable.
  • the anti-rotation element can engage in the anti-rotation receptacle. If the anti-rotation element is designed as a magnet, the anti-rotation mount is also designed as a magnet, so that the anti-rotation mount and the anti-rotation element create a magnetic connection.
  • the attachment cap is prevented from being rotatable relative to the interface.
  • the attachment cap has at least one positioning element formed in the circumferential direction, which is designed to position the attachment cap relative to the handheld power tool, in particular the tool holder, particularly the lighting element.
  • the positioning element can be positively, non-positively and/or cohesively connected to the attachment cap. It is also possible that the attachment cap forms the positioning element, so that the positioning element and the attachment cap are in one piece.
  • the positioning element can be arranged on the contact element in the circumferential direction. Furthermore, the positioning element can be offset in the circumferential direction, for example 90°, to the light guide element on the contact element. It is possible that the contact element forms the positioning element.
  • the positioning element can be arranged axially offset to the recessed grip on the attachment cap. Two positioning elements are provided as an example.
  • the positioning element can be designed in the manner of a pin, in the manner of a web, in the manner of an edge or in the manner of a projection. It is also conceivable that the positioning element is designed as a magnet. In addition, it is possible for the anti-rotation element and the positioning element to be in one piece.
  • the positioning element is designed to, in particular, have a positioning receptacle on the hand-held power tool mechanical to train connection.
  • the positioning receptacle can be designed, for example, in the manner of a recess, pot-like, shell-like or with an undercut. It is also possible for the positioning receptacle to be designed as a magnet, for example.
  • the positioning receptacle is designed to be complementary to the positioning element.
  • the positioning receptacle can be arranged in the circumferential direction relative to the tool receptacle on the end face and offset in the circumferential direction relative to the lighting element.
  • the positioning element and the positioning receptacle can form a positive and/or non-positive connection, with the connection being reversibly detachable.
  • the positioning element can engage in the positioning receptacle. If the positioning element is in the form of a magnet, the positioning receptacle is also in the form of a magnet, so that the positioning receptacle and the positioning element create a magnetic connection.
  • the anti-rotation mount and the positioning mount to be in one piece.
  • the attachment cap can be positioned relative to the interface in such a way that the light guide element is arranged in an axially overlapping manner with respect to the lighting element.
  • the light guide element has at least one light coupling element, which is arranged between the contact element and the ring lens and is designed to guide light from the lighting element in the direction of the ring lens.
  • the light coupling element can be designed, for example, like a ramp, like a wedge, or like a slide.
  • the light coupling element is designed to couple and focus the light from the lighting element into the light guide element. In this case, the light coupling element can then forward the light to the light guide element, so that the light reaches the annular lens.
  • the light guide element can be injection molded around the light coupling element.
  • the light coupling element can be offset in the circumferential direction to the recessed grip on the attachment cap. It is possible for each light guide element to be assigned a light coupling element. Two light coupling elements can be provided here, for example. A number of light coupling elements can correspond to a number of light guide elements.
  • the light guide element has at least one light outlet edge, with the light coupling element being arranged next to that of the light outlet edge.
  • two light offset edges can be provided, so that the light coupling element can be arranged between the light offset edges.
  • the edge of the light can also be wedge-shaped, for example.
  • the positioning element and/or the anti-twist element can be arranged axially offset between two light shoulder edges. If two light in-coupling elements are provided, for example four light-off edges can be present, so that each light-in-coupling element is arranged between two light off-edges.
  • the invention is also based on a system comprising a hand-held power tool as described above and an attachment cap as described above, the hand-held power tool having the tool holder, the lighting element and the interface for the detachable connection to the attachment cap.
  • handheld power tool 100 is designed as a battery-operated handheld power tool 100, here by way of example as a cordless screwdriver. It is pointed out that the present invention is not limited to cordless screwdrivers. In addition, the present invention can be used not only in mains-independent handheld power tools that are operated via a rechargeable battery, ie cordless handheld power tools, but also in mains-operated handheld power tools, ie mains-powered handheld power tools.
  • the hand tool 100 illustratively has a drive unit 120, a Main output shaft 126 with a tool holder 128 on.
  • the main output shaft 126 of the drive unit 120 represents a tool axis 112 .
  • the hand-held power tool 100 has a hand-held power tool housing 110 , the hand-held power tool housing 110 illustratively including the drive unit 120 .
  • the drive unit 120 also includes a drive motor 121 and a gear unit 122.
  • the gear unit 122 can be designed as at least one switchable planetary gear.
  • the gear unit 122 is connected to the drive motor 121 via a motor shaft 123 .
  • the gear unit 122 is provided to convert a rotation of the motor shaft 123 into a rotation between the gear unit 122 and the tool holder 128 via the main output shaft 126 .
  • the drive motor 121 and the gear unit 122 are arranged directly in the hand-held power tool housing 110 in the manner of an “open frame” design.
  • the drive motor 121 is designed as an electronically commutated motor.
  • the drive motor 121 can be controlled and/or regulated electronically, so that reverse operation and a desired rotational speed can be implemented.
  • the tool holder 128 is preferably formed and/or formed on the main output shaft 126 .
  • the tool holder 128 is designed here as a hexagon socket holder 129, in the manner of a bit holder, which is intended to hold an insert tool, see also 2 .
  • the application tool is shaped like a screwdriver bit with a polygonal outer clutch.
  • the type of screwdriver bit for example the HEX type, is well known to those skilled in the art.
  • the present invention is not limited to the use of HEX screwdriver bits, but other tool holders that appear sensible to a person skilled in the art can also be used, such as HEX drill bits or SDS-Quick insert tools.
  • the structure and the mode of operation of a suitable bit holder are well known to those skilled in the art.
  • Hand-held power tool 100 also has an energy supply unit 140 for supplying energy to drive unit 120 .
  • the energy supply unit 140 comprises at least one rechargeable battery for driving the drive unit 120.
  • the energy is therefore provided by the energy supply unit 140 by means of the at least one battery.
  • the at least one rechargeable battery is arranged fixed to the housing essentially within hand-held power tool housing 110 of hand-held power tool 100 .
  • the hand-held power tool 100 has a charging unit that is not shown in detail. This charging unit can be connected to a power grid and is designed to charge the energy supply unit 140 .
  • the hand-held power tool housing 110 supports the drive unit 120 in a mounted state and therefore protects the drive unit 120 from environmental influences such as dust, moisture, radiation and/or impacts.
  • the handheld power tool housing 110 is designed in the shape of a pistol, it also being conceivable for the handheld power tool housing 110 to be designed in a T-shape.
  • the handheld power tool housing 110 includes a handle 111.
  • the handle 111 is designed to be gripped by a hand of a user when using the handheld power tool 100.
  • the hand-held power tool 100 is designed to be held by hand for use.
  • the hand-held power tool housing 110 has two housing elements 113 .
  • the housing elements 113 can be connected to one another in a form-fitting manner and are screwed together using screws that are not shown.
  • the hand-held power tool housing 110 accommodates at least the drive unit 120 , a rotational direction selection element 124 , a control unit 150 , the main output shaft 126 and the energy supply unit 140 .
  • the direction of rotation selection element 124 is designed as a direction of rotation selector switch and is provided for setting a direction of rotation of the drive unit 120 .
  • the hand-held power tool housing 110 accommodates the direction-of-rotation selection element 124 .
  • the direction of rotation selection element 124 can switch between a clockwise direction of rotation and a counterclockwise direction of rotation of the drive unit 120 .
  • the rotational direction selection element 124 has a rotational direction neutral position in which the drive unit 120 cannot be operated in any rotational direction. The direction of rotation selection element 124 forwards the setting of the clockwise direction of rotation, the counterclockwise direction of rotation and the neutral position of the direction of rotation to the control unit 150 .
  • the hand-held power tool 100 comprises the control unit 150.
  • the control unit 150 controls and/or regulates the drive unit 120, in this embodiment the drive motor 121.
  • the hand-held power tool 100 also has an actuation unit 160 which can be actuated by a user. When the user operates the operation unit 160, the drive unit 120 is activated.
  • the actuation unit 160 has an actuation element 162 which is movably mounted relative to the hand-held power tool housing 110 .
  • the actuating element 162 can be actuated by the user. By the user actuating the actuating element 162 with at least one finger, the user can control and/or regulate the hand-held power tool 100 .
  • FIG. 12 shows a perspective section of an end face 114 of handheld power tool 100.
  • End face 114 is arranged on handheld power tool 100 in a direction pointing away from drive unit 120.
  • the end face 114 is arranged between the tool holder 128 and the drive unit 120 .
  • the hand-held power tool 100 includes an interface 170 and here two exemplary light-emitting elements 180.
  • the light-emitting elements 180 are arranged in the end face 114 in such a way that the attachment cap 200 covers the light-emitting elements 180 in a connected state, see also 1 .
  • the hand-held power tool housing 110 comprises a through hole 115 for each luminous element 180, in which the respective luminous element 180 is arranged.
  • the light-emitting elements 180 are arranged in a direction pointing away from the drive unit 120 in the area of the tool holder 128 .
  • the light-emitting elements 180 are each formed as an LED here by way of example.
  • the light-emitting elements 180 can likewise be activated by means of the actuating element 162 . In this case, when actuating the actuating element 162 , in addition to the drive unit 120 , the light-emitting elements 180 can also be activated. Once the light emitting elements 180 are activated, light is emitted from the light emitting elements 180 .
  • the interface 170 is also arranged on the end face 114.
  • Interface 170 is formed for releasable connection to attachment cap 200 and tool adapters, not shown.
  • the interface 170 includes a groove 172 formed in the circumferential direction of the tool axis 112 and a Plug-in ring 174.
  • the interface 170 is arranged around the tool holder 128 in the circumferential direction, so that the interface 170 encloses the tool holder 128 at least partially.
  • the end face 114 comprises two anti-rotation mounts 190, the anti-rotation elements 190 each being formed in the manner of a pot-like recess.
  • the anti-twist receptacles 190 are arranged in the circumferential direction relative to the tool receptacle 128 on the end face 114 and offset in the circumferential direction relative to the light-emitting elements 180 .
  • the end face 114 also includes two positioning receptacles 194, the positioning receptacles 194 being formed, for example, in the manner of a pot-like recess.
  • the positioning receptacles 194 are arranged in the circumferential direction relative to the tool receptacle 128 on the end face 114 and offset in the circumferential direction relative to the light-emitting elements 180 .
  • the anti-rotation mounts 190 and the positioning mounts 194 are in one piece.
  • the attachment cap 200 comprises a connecting element 210 for detachable connection to the interface 170, a light guide element 220 for conducting the light of the light-emitting elements 180, an at least partially circumferential contact element 240 and an optically conductive ring lens 260.
  • the Top cap 200 can be arranged on end face 114 by means of contact element 240 .
  • the ring lens 260 is arranged around the tool holder 128 .
  • the ring lens 260 is designed to receive the light from the light-emitting elements 180 and to illuminate a work site.
  • the attachment cap 200 is here, for example, dome-like and designed as a hollow body, so that the attachment cap 200 has an interior space 202, see also Fig. 3b - d .
  • the attachment cap 200 can be detachably connected to the interface 170 using the connecting element 210 .
  • the connecting element 210 is arranged in the interior space 202, four connecting elements 210 being present here.
  • the connecting elements 210 are formed here as a latching element 212, in particular latching hooks 214, see also Fig. 3b - d .
  • the latching elements 212 are provided to form a latching connection with the groove 172 of the interface 170 .
  • the attachment cap 200 includes an attachment cap axis 204, the attachment cap axis 204 being an axis of symmetry of the attachment cap 200 and coaxial with the tool axis 112 in the connected state.
  • Two light guide elements 220 are provided here, with the light guide elements 220 being transparent.
  • the light guide elements 220 are provided for receiving and forwarding the light from the light-emitting elements 180 .
  • the light guide elements 220 are arranged in the circumferential direction relative to the attachment cap axis 204 .
  • the two light guide elements 220 are arranged opposite one another.
  • the attachment cap 200 here comprises two recessed grips 206 which are arranged opposite one another.
  • the recessed grips 206 are formed on the attachment cap 200 in the circumferential direction relative to the attachment cap axis 204 .
  • the recessed grips 206 are formed offset to the light guide elements 220 in the circumferential direction on the attachment cap 200 .
  • the light guide elements 220 are arranged between the annular lens 260 and the contact element 240 . In the connected state, the light guide elements 220 can be arranged on the end face 114 in such a way that in each case one light guide element 220 is arranged in an axially overlapping manner in each case with a light-emitting element 180 .
  • the attachment cap 200 comprises a free end 207 and a further free end 208, the free end 207 and the further free end 208 being arranged opposite one another.
  • the contact element 240 is at least partially circumferential and arranged in the circumferential direction of the attachment cap axis 204 at the free end 207 .
  • the contact element 240 rests against the end face 114 in the connected state and at least partially encloses the interface 170.
  • the contact element 240 is arranged coaxially and opposite the annular lens 260 on the attachment cap 200.
  • the annular lens 260 is arranged at the other free end 208 of the attachment cap 200 .
  • the ring lens 260 is arranged in the circumferential direction around the tool holder 128 in the connected state.
  • the ring lens 260 is optically conductive and transparent here. Furthermore, the annular lens 260 is formed here in the manner of a disc.
  • the ring lens 260 and the light guide elements 220 are optically conductively connected to one another. In this case, the light guide elements 220 and the ring lens 260 are optically conductively connected to one another directly and essentially immediately, being in one piece here.
  • the two light guide elements 220 with the annular lens 260 form the shape of a wing nut.
  • the attachment cap 200 includes a receptacle 216 for the annular lens 260.
  • the receptacle 216 is intended to connect the annular lens 260 to the attachment cap 200, with the receptacle 216 being shaped to complement the annular lens 260.
  • the receptacle 216 is formed in the manner of a shell, for example.
  • the receptacle 216 accommodates the two light guide elements 220 here.
  • the attachment cap 200 is overmoulded around the ring lens 260 and the light guide elements 220, so that the receptacle 216 and the ring lens 260 and the light guide elements 220 are connected to one another with a material fit.
  • the annular lens 260 further includes an opening 262 which is circular and formed substantially centrally in the annular lens 260 .
  • the tool holder 128 can be guided at least partially through the opening 262 .
  • the opening 262 is arranged in the circumferential direction around the tool holder 128 such that the annular lens 260 at least partially encloses the tool holder 128 .
  • the attachment cap 200 here comprises two anti-rotation elements 270 formed in the circumferential direction.
  • the anti-rotation elements 270 are provided for arranging the attachment cap 200 at the interface 170 in a non-rotatable manner in the connected state.
  • the attachment cap 200 forms the anti-twist protection elements 270 so that the attachment cap 200 and the anti-rotation protection elements 270 are in one piece.
  • the anti-twist elements 270 are arranged on the contact element 240 in the circumferential direction and are offset in the circumferential direction with respect to the light guide elements 220 on the contact element 240 .
  • the anti-twist elements 270 are arranged axially offset with respect to the recessed grips 206 on the attachment cap 200 .
  • the anti-rotation elements 270 are each formed in the form of a pin, for example.
  • the anti-rotation elements 270 are provided to form a mechanical connection in the connected state with the anti-rotation receptacles 190 of the hand-held power tool 100 .
  • the anti-rotation lock receptacles 190 are shaped to complement the anti-rotation lock elements 270 .
  • the anti-rotation elements 270 each engage in one of the anti-rotation mounts 190 .
  • the attachment cap 200 here comprises two positioning elements 280 formed in the circumferential direction.
  • the positioning elements 280 are intended to position the attachment cap 200 in the connected state relative to the handheld power tool 100, in particular the tool holder 128, very particularly the lighting elements 220.
  • the attachment cap 200 forms the positioning elements 280 so that they are in one piece.
  • the positioning elements 280 are on in the circumferential direction the contact element 240 arranged.
  • the positioning elements 280 are arranged axially offset with respect to the recessed grips 206 on the attachment cap 200 .
  • the positioning elements 280 are each formed in the manner of a pin.
  • the anti-rotation elements 270 and the positioning elements 280 are in one piece.
  • the positioning elements 280 are provided to each form a mechanical connection with one of the positioning receptacles 194 of the hand-held power tool 100 .
  • the positioning receptacles 194 are shaped to complement the positioning elements 280 .
  • the positioning elements 280 engage in the positioning receptacles 194 in a form-fitting manner.
  • FIG 3a a side view of the attachment cap 200 is shown in a first embodiment.
  • Figure 3b 1 is a perspective view of the attachment cap 200 of the first embodiment.
  • the light guide elements 220 are each formed in the manner of a strip 222 .
  • the contact element 240 is formed here as a circumferential contact web 242, the contact web 242 and the attachment cap 200 being in one piece here.
  • the light guide elements 220 each include a light coupling element 224, so that two light coupling elements 224 are provided here.
  • the light coupling elements 224 are each arranged on the contact element 240 and the ring lens 260 . Furthermore, the light coupling elements 224 are provided to direct the light from the light-emitting elements 180 in the direction of the ring lens 260 .
  • the light coupling elements 224 are each formed in a ramp-like manner here.
  • the light coupling elements 224 are here in one piece with the light guide elements 220.
  • the light coupling elements 224 are offset in the circumferential direction relative to the recessed grips 206 on the attachment cap 200.
  • each light guide element 220 here includes, for example, two light offset edges 226, so that four light offset edges 226 are provided here.
  • one light coupling element 224 is arranged between two light offset edges 226 .
  • the light offset edges 226 are additionally wedge-shaped.
  • In 3c 1 is a perspective view of the attachment cap 200 of a second embodiment.
  • the light guide elements 220 are again designed in the manner of a strip 222 .
  • the light guide elements 220 each have two side arms 228 .
  • the side arms 228 overlap the contact element 240 here.
  • the contact element 240 is formed in this embodiment as a partially circumferential contact web 244, with two partially circumferential here Investment webs 244 are provided.
  • the light guide elements 220 each serve as a connecting web for the two partially circumferential contact webs 244.
  • 3d 1 is a perspective view of the attachment cap 200 of a third embodiment.
  • the light guide elements 220 are each shaped here in the manner of a pin-like cylinder 230 .
  • the contact element 240 is designed here as a circular contact web 246 .
  • the circular contact web 246 and the attachment cap 200 are in one piece here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP22212565.0A 2021-12-22 2022-12-09 Outil à main Pending EP4201596A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021214857.3A DE102021214857A1 (de) 2021-12-22 2021-12-22 Handwerkzeugmaschine

Publications (1)

Publication Number Publication Date
EP4201596A1 true EP4201596A1 (fr) 2023-06-28

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ID=84487488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22212565.0A Pending EP4201596A1 (fr) 2021-12-22 2022-12-09 Outil à main

Country Status (2)

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EP (1) EP4201596A1 (fr)
DE (1) DE102021214857A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1658932A1 (fr) * 2004-11-17 2006-05-24 BLACK & DECKER INC. Outil motorisé portatif avec dispositif d'éclairage
US20080074865A1 (en) * 2006-09-25 2008-03-27 Manfred Lutz Hand-held power tool
EP2420198A1 (fr) * 2010-08-19 2012-02-22 Asetronics AG Outil manuel doté d'un dispositif d'éclairage
EP2447006A2 (fr) * 2010-09-30 2012-05-02 Black & Decker Inc. Outil électrique doté d'un éclairage pour éclairer une pièce de travail
DE102011075663A1 (de) * 2011-05-11 2012-11-15 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Arbeitsfeldbeleuchtung
DE102012205274A1 (de) * 2012-03-30 2013-10-02 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Arbeitsfeldbeleuchtung
DE102012216600A1 (de) 2012-09-18 2014-04-10 Robert Bosch Gmbh Aufsatzkappe für eine Handwerkzeugmaschine
US20140198486A1 (en) * 2011-06-14 2014-07-17 Robert Bosch Gmbh Hand-power tool
DE102015103402A1 (de) * 2015-03-09 2016-09-15 Ferton Holding S.A. Optisches Bauteil, Beleuchtungsvorrichtung und Handstück eines dentalen Behandlungsgeräts
EP3318366A1 (fr) * 2016-11-07 2018-05-09 Nanjing Chervon Industry Co., Ltd. Outil électrique
JP2021112816A (ja) * 2020-01-20 2021-08-05 株式会社マキタ 電動作業機、照明アタッチメント、及び電動作業機から光を放射する方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7080964B2 (en) 2003-08-26 2006-07-25 Credo Technology Corporation Tool chuck having a light transmitting capability

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1658932A1 (fr) * 2004-11-17 2006-05-24 BLACK & DECKER INC. Outil motorisé portatif avec dispositif d'éclairage
US20080074865A1 (en) * 2006-09-25 2008-03-27 Manfred Lutz Hand-held power tool
EP2420198A1 (fr) * 2010-08-19 2012-02-22 Asetronics AG Outil manuel doté d'un dispositif d'éclairage
EP2447006A2 (fr) * 2010-09-30 2012-05-02 Black & Decker Inc. Outil électrique doté d'un éclairage pour éclairer une pièce de travail
DE102011075663A1 (de) * 2011-05-11 2012-11-15 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Arbeitsfeldbeleuchtung
US20140198486A1 (en) * 2011-06-14 2014-07-17 Robert Bosch Gmbh Hand-power tool
DE102012205274A1 (de) * 2012-03-30 2013-10-02 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Arbeitsfeldbeleuchtung
DE102012216600A1 (de) 2012-09-18 2014-04-10 Robert Bosch Gmbh Aufsatzkappe für eine Handwerkzeugmaschine
DE102015103402A1 (de) * 2015-03-09 2016-09-15 Ferton Holding S.A. Optisches Bauteil, Beleuchtungsvorrichtung und Handstück eines dentalen Behandlungsgeräts
EP3318366A1 (fr) * 2016-11-07 2018-05-09 Nanjing Chervon Industry Co., Ltd. Outil électrique
JP2021112816A (ja) * 2020-01-20 2021-08-05 株式会社マキタ 電動作業機、照明アタッチメント、及び電動作業機から光を放射する方法

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