EP4344828A1 - Machine-outil portative dotée d'un cadre de positionnement - Google Patents

Machine-outil portative dotée d'un cadre de positionnement Download PDF

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Publication number
EP4344828A1
EP4344828A1 EP23193263.3A EP23193263A EP4344828A1 EP 4344828 A1 EP4344828 A1 EP 4344828A1 EP 23193263 A EP23193263 A EP 23193263A EP 4344828 A1 EP4344828 A1 EP 4344828A1
Authority
EP
European Patent Office
Prior art keywords
positioning
hand tool
tool according
section
battery
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
EP23193263.3A
Other languages
German (de)
English (en)
Inventor
Ameer Fareed Ahmad Fauzi
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 EP4344828A1 publication Critical patent/EP4344828A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • 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
    • B25F1/00—Combination or multi-purpose hand tools

Definitions

  • the present invention relates to a hand-held power tool, in particular a screwdriver, with an elongated housing in which at least one drive motor for rotating a tool holder, a battery for the mains-independent power supply of the drive motor, and associated control electronics are arranged, and with a positioning frame that has an interior for positioning the drive motor, the battery and the associated control electronics in the elongated housing.
  • the straight screwdriver has an elongated housing in which a drive motor is arranged to drive an insert tool that can be arranged in a tool holder.
  • a positioning frame for positioning the drive motor, a battery and control electronics is arranged in an interior of the housing.
  • the invention relates to a hand-held power tool, in particular a screwdriver, with an elongated housing in which at least one drive motor for rotating a tool holder, a battery for supplying the drive motor with power independent of the mains, and associated control electronics are arranged, and with a positioning frame which forms an interior for positioning the drive motor, the battery and the associated control electronics in the elongated housing.
  • the positioning frame has a first positioning section for positioning the drive motor and a second positioning section for positioning the associated control electronics and the battery, wherein the first and second positioning sections have different cross-sections.
  • the invention thus makes it possible to provide a hand-held power tool with an elongated housing, in which the different cross sections of the first and second positioning sections make it possible to provide a secure and reliable anti-rotation protection of the positioning frame relative to the elongated housing.
  • the first positioning section is designed in the manner of a hollow cylinder and the second positioning section is designed in the manner of a hollow cuboid.
  • the positioning frame has a first positioning web for positioning the associated control electronics along a longitudinal extension of the elongated housing, and a second positioning web for positioning the battery, wherein the two positioning webs are arranged substantially parallel to one another and are decoupled from one another by a recess.
  • the positioning frame has two complementary half-shells which are connected to one another via snap connections, each half-shell having a first and second positioning web.
  • the second positioning section has the first and second positioning webs.
  • the second positioning section has at least two holding sections which form a positioning receptacle for the associated control electronics.
  • the second positioning section preferably has at least one positioning web which surrounds the battery at least in sections for positioning purposes.
  • the first positioning section has ventilation recesses.
  • the positioning frame preferably has on its outer circumference at least one positioning receptacle arranged along the longitudinal extent of the elongated housing for receiving at least one positioning web which is assigned to the at least one positioning receptacle and is formed on an inside of the elongated housing.
  • the positioning frame preferably has a connecting strut arranged transversely to the longitudinal extent of the elongated housing, which is designed to axially secure the battery in an assigned internal receptacle of the positioning frame.
  • the positioning frame is preferably screwed to the elongated housing via at least one screw dome for axial securing.
  • the at least one screw dome forms a clamping connection with a receptacle assigned to the associated control electronics.
  • the positioning frame has at least one cable holding section on its outer circumference.
  • This provides a safe and reliable cable holder, which can prevent a cable from becoming jammed during installation.
  • Fig.1 shows an exemplary handheld power tool 100, which illustratively has an elongated housing 110.
  • the elongated housing 110 means that the handheld power tool 100 is thus designed in the so-called "rod shape" for example.
  • the handheld power tool 100 is preferably designed as a screwdriver, in particular as a rod screwdriver.
  • the handheld power tool 100 can be mechanically and electrically connected to a power supply unit for mains-independent power supply.
  • the power supply unit is preferably designed as a battery or battery pack 150.
  • the battery 150 is preferably fixedly arranged in the housing 110.
  • At least one drive motor 140 for driving a tool holder 120 is preferably arranged in the elongated housing 110.
  • the tool holder 120 has an internal holder 125 for holding an insert tool.
  • the internal receptacle 125 can form a hexagon socket for a screwdriver bit or bit insertion tools.
  • the elongated housing 110 preferably has a cylindrical, illustratively at least partially sleeve-shaped base body with a first axial end 101 and an opposite second axial end 102, with the tool holder 120 being arranged, for example, in the area of the first axial end 101.
  • a longitudinal direction 105 of the elongated housing 110 is formed between the first and second axial ends 101, 102.
  • the tool holder 120, the drive motor 140, and the housing 110 are arranged along a common longitudinal axis, which is preferably congruent to a rotation axis 103 of the tool holder 120. All elements of the hand-held power tool 100 are preferably arranged in the elongated housing 110. In comparison to a hand-held power tool with a pistol-shaped housing, in which the battery is arranged perpendicular to the drive motor, which is well known from the prior art, the battery 150 is also preferably arranged in the housing 110 in the hand-held power tool 100.
  • a gear 145 is associated with the drive motor 140.
  • the gear 145 is preferably designed as a planetary gear.
  • a slide switch 170 is preferably provided, which is arranged on the housing 110 for activating a reversing operation of the drive motor 140.
  • the housing 110 preferably has an optional torque adjustment sleeve 130 at its axial end 101 for adjusting an associated, optional torque coupling.
  • the tool holder 120 illustratively has an axial longitudinal extension 109.
  • axial is understood to mean a direction along the longitudinal extent 109 of the tool holder 120.
  • radial is understood to mean a direction approximately perpendicular to the longitudinal extent 109 of the tool holder 120.
  • a radial direction 108 is arranged approximately perpendicular to the longitudinal direction 105 of the elongated housing 110 or perpendicular to the longitudinal extent 109 of the tool holder 120.
  • the axial direction is essentially parallel to the longitudinal extent 109 of the tool holder 120 or parallel to the axis of rotation 103 of the Tool holder 120 arranged.
  • an activation unit 175 is provided for activating the drive motor 140.
  • the activation unit 175 is arranged axially between the optional torque adjustment sleeve 130 and the slide switch 170.
  • a positioning frame 200 is provided which is used to position the drive motor 140, the battery 150 and an associated control electronics (220 in Fig.2 ) is formed in the elongated housing 110.
  • Fig. 2 shows the hand tool 100 from Fig. 1 .
  • the positioning frame 200 preferably forms an interior space 205, 206 on its inside facing the drive motor 140 and the battery 150 for positioning the drive motor 140, the battery 150 and associated control electronics 220 in the elongated housing 110.
  • the battery 150 has a round cross section.
  • the control electronics 220 is illustratively arranged on an upper side of the battery 150 facing the control electronics 220.
  • the drive motor 140 is arranged in a first positioning section 208 assigned to the positioning frame 200 and the battery 150 and the associated control electronics 220 are arranged in a second positioning section 209 assigned to the positioning frame 200.
  • the two positioning sections 208, 209 are preferably arranged axially one after the other.
  • the two positioning sections 208, 209 have different cross sections.
  • the first positioning section 208 is designed in the manner of a hollow cylinder and the second Positioning section 209 is designed in the manner of a hollow cuboid.
  • the second positioning section 209 can also have a different, preferably angular shape, eg in the manner of a triangle or other polygon.
  • the first positioning section 208 can also have any other shape, in particular one without corners, such as an oval shape.
  • the positioning frame 200 has two complementary half-shells 230, 250.
  • the two half-shells 230, 250 form the two positioning sections 208, 209 and the interior spaces 205, 206.
  • the two half-shells 230, 250 are connected to one another via snap-in connections (411-414 in Fig.4 ; 511, 512 in Fig.5 ) are connected to each other.
  • Fig.2 locking elements 231, 232, 245, 246, 251, 252, 256, 265, 266 are shown by way of example.
  • the locking elements 231, 232, 251, 252 are arranged in the first positioning section 208 and the locking elements 245, 246, 256, 265, 266 are assigned to the second positioning section 209.
  • the locking elements 245, 246 are preferably designed as locking receptacles and the locking elements 265, 266 as locking hooks.
  • the first positioning section 208 has two radially formed holding sections 278, 279 on its interior space 205 or on its inner circumference facing the drive motor 140.
  • the holding sections 278, 279 form illustrative axial stops of the drive motor 140.
  • the holding section 278 is arranged facing the tool holder 120 or is arranged at an illustrative left end of the drive motor 140 and the holding section 279 is arranged at the end of the first positioning section 208 facing the second positioning section 209.
  • the first positioning section 208 preferably has ventilation recesses 233, 253 for cooling the drive motor 140.
  • the positioning frame 200 preferably has at least one cable holding section 249 for securely holding at least one cable 215 on its outer circumference 207, which faces the housing 110 and away from the drive motor 140 and the battery 150.
  • the positioning frame 200 preferably has a first positioning web 235, 255 along the longitudinal extension 105 of the elongated housing 110 for positioning the associated control electronics 220.
  • the positioning frame 200 preferably has a second positioning web 241, 261 for positioning the battery 150.
  • the two positioning webs 235, 255, 241, 261 are arranged essentially parallel to one another for illustrative purposes.
  • the positioning webs 235, 255, 241, 261 are preferably decoupled from one another by an elongated recess 248.
  • an illustrative slot-like recess 248 is arranged between the positioning webs 235, 241 of the half-shell 230 and analogously a recess 248 is arranged between the positioning webs 255, 261 of the half-shell 250.
  • each half-shell 230, 250 has a first and second positioning web 235, 255, 241, 261.
  • the second positioning section 209 has the first and second positioning web 235, 255, 241, 261.
  • the second positioning section 209 has at least two holding sections 236, 237, 238, 239, 256, 257, 258, 259.
  • the illustrative eight holding sections 236, 237, 238, 239, 256, 257, 258, 259 preferably form a positioning receptacle 240, 260 for the associated control electronics 220.
  • the holding sections 236, 237, 238, 239 are preferably assigned to the half-shell 230 and the holding sections 256, 257, 258, 259 are assigned to the half-shell 250.
  • one holding section 236, 238, 256, 258 each forms an illustrative upper limit of the positioning receptacle 240, 260 and the holding sections 237, 239, 257, 259 form an illustrative lower limit of the positioning receptacle 240, 260.
  • a holding section 236, 238, 256, 258 of the illustrative upper limit is arranged axially next to one of the holding sections 237, 239, 257, 259 of the illustrative lower limit.
  • the holding sections 236, 237, 238, 239, 256, 257, 258, 259 is merely an example and should not be seen as a limitation of the invention.
  • the holding sections 236, 238, 256, 258 can also have an illustrative lower limit of the positioning receptacle 240, 260 and the holding sections 237, 239, 257, 259 can form an illustrative upper limit of the positioning receptacle 240, 260.
  • the second positioning section 209 preferably has at least one positioning web 242, 243, 244, 262, 263, 264, which at least partially surrounds the battery 150 for positioning.
  • the positioning webs 242, 243, 244 are preferably assigned to the half-shell 230 and the positioning webs 262, 263, 264 are preferably assigned to the half-shell 250.
  • the positioning webs 242, 262 are arranged axially facing the first positioning section 208 and the positioning webs 244, 264 are assigned to the second axial end 102 of Fig.1
  • the positioning webs 243, 263 are preferably arranged axially between the positioning sections 242, 244, 262, 264.
  • the positioning frame 200 preferably has at least one positioning receptacle 272, 273 arranged along the longitudinal extent 105 of the elongated housing 110 on its outer circumference 207 facing the housing 110.
  • the positioning receptacle 272, 273 is preferably designed to receive at least one positioning web 212, 214, which is assigned to the positioning receptacle 272, 273 and is formed on an inside 210 of the elongated housing 110 facing the drive motor 140 or the battery 150.
  • an end cap (not shown) for closing the housing 100 is screwed tightly to the positioning webs 212, 214.
  • Each half-shell 230, 250 preferably has one of the positioning receptacles 272, 273.
  • the positioning receptacles 272, 273 are arranged axially one after the other.
  • the positioning frame 200 preferably has a connecting strut 291, 293 arranged transversely to the longitudinal extent 105 of the elongated housing 110, which is designed to axially secure the battery 150 in the associated internal receptacle 206 of the positioning frame 200.
  • the connecting strut 291 is assigned to the half-shell 250 and the connecting strut 293 is assigned to the half-shell 230.
  • the positioning frame 200 preferably has further stabilization struts 292, 294 parallel to the connecting struts 291, 293, through which the two half-shells 230, 250 can be connected to one another.
  • the second positioning section 209 preferably has, on its side facing the first positioning section 208, an expansion web 275 which is designed radially inwards and is designed to axially fix the battery 150 in the direction of the drive motor 140.
  • the positioning frame 200 is preferably screwed to the elongated housing 110 via at least one and illustratively two screw domes 234, 254 for axial securing.
  • the screw dome 234 is assigned to the half-shell 230, for example, and the screw dome 254 is assigned to the half-shell 250.
  • each of the screw domes 234, 254 preferably forms a clamping connection (621 in Fig.6 ).
  • the receptacles 221, 222 are preferably arranged on the side surface of the control electronics 220.
  • the elongated housing 110 preferably has fixing webs 282, 283 on its inner side 210 for forming a screw connection with the screw domes 234, 254 of the positioning frame 200.
  • the screw domes 234, 254 are preferably arranged in the area of the handle area 115 so that screwing can take place through a recess in the handle area 115.
  • the illustrative slot-like recess 248 is preferably formed from the respective screw dome 234, 254 up to a free end of the positioning frame 200 facing away from the drive motor 140.
  • the positioning webs 242, 243, 244, 262, 263, 264 are preferably arranged axially decoupled from the recess 248.
  • the positioning frame 200 is arranged around the drive motor 140 and the battery 150 with the control electronics 220 and the two half-shells 230, 250 are connected to each other via snap-in connections.
  • the housing 110 is then pushed in the direction of an arrow 201 starting from the second axial end 102 of Fig.1 pushed onto the positioning frame 200.
  • the clamping connection between the housing 110 and the positioning frame 200 is thereby formed.
  • the housing 110 and the positioning frame 200 are screwed together at the screw domes 234, 254.
  • Fig. 3 shows the positioning framework 200 from Fig. 1 and Fig. 2 and clarifies the preferably slot-shaped recess 248 for decoupling the positioning webs 235, 255, 241, 261. Further clarified Fig. 3 the locking elements 231, 232, 245, 246, 251, 252, 256, 265, 266 and further locking elements 311, 312, 313, 314.
  • the locking elements 311-314 are preferably axially between the locking elements 251, 266, 252, 265, 231 , 246, 233, 245 arranged.
  • the locking elements 311, 312, 313, 314 are arranged axially between the expansion web 275 and the holding section 279.
  • Fig. 4 shows the positioning framework 200 from Fig. 1 to Fig. 3 , where in Fig. 4 the two half-shells 230, 250 are connected to one another via a snap connection.
  • Fig. 4 Snap connections 411-414 The illustrative left locking element 231 of the half-shell 230 and the locking element 251 of the half-shell 250 form a locking connection 411.
  • the locking elements 313, 314 preferably form a locking connection 412.
  • the latching elements 246, 256 preferably form a latching connection 413 and the latching elements 245, 265 form the latching connection 414.
  • Fig.5 shows the positioning frame 200 of Fig.4 viewed from the bottom.
  • Fig.5 a locking connection 511 formed by the locking elements 233, 253 and a locking connection 512 formed by the locking elements 311, 312.
  • Fig.5 the holding section 278.
  • the holding sections 278 are designed as radial webs which extend from the outer circumference 207 radially inwards or towards the rotation axis 103 of Fig.1 are trained towards this.
  • Fig. 6 shows the positioning frame 200 arranged in the elongated housing 110 Fig. 1 to Fig. 5 , with the battery 150 arranged in the interior 206 and the control electronics 220. This makes it clear Fig. 6 a clamp connection 621 between the screw domes 234, 254 and the receptacles 221, 222 assigned to the control electronics 220.
  • FIG. 6 an illustrative screw connection 621 formed between the positioning frame 200 and the elongated housing 110.
  • a screw element 611 connects the screw dome 234, 254 with the fixing web 282, 283 arranged on the inside 210 of the housing 110.
  • Two screw connections 621 are shown illustratively, with one screw connection 621 each being assigned to a half-shell 230, 250.
  • This shows Fig. 6 also the arrangement of the fixing webs 282, 283 at the axial end of the recess 248 facing the drive motor 140.
  • the fixing webs 282, 283 move within the recess 248.
  • the positioning webs 244, 264 are preferably designed such that they at least partially enclose the battery 150 on its outer circumference facing the elongated housing 110.
  • the positioning webs 244, 264 preferably have a receiving geometry assigned to the battery 150.
  • the outer circumference of the battery 150 is preferably enclosed by approximately 75%.
  • Fig.7 shows the positioning frame 200 arranged in the elongated housing 110 of Fig.6 .
  • the fixing webs 282, 283 are arranged in the recess 248.
  • the control electronics 220 are arranged in the positioning receptacles 240, 260.
  • FIG. 6 also visualizes the positioning webs 212, 214 arranged in the positioning receptacles 272, 273, through which the positioning frame 200 in the elongated housing 110 is secured against rotation.
  • Fig. 7 also visualizes the second positioning section 209, which is designed in the manner of a hollow cuboid 710.
  • Fig.8 shows the elongated housing 110 as well as the positioning frame 200 arranged in the interior 210 of Fig. 1 to Fig. 7 , with the housing 110 shown transparent.
  • Fig.8 the arrangement of the positioning web 214 of the positioning frame 200 in the positioning receptacles 272, 273 of the housing 110.
  • Fig. 9 shows a section of the positioning framework 200 from Fig. 1 to Fig. 8 , wherein at least one cable holding section 249 is arranged on the outer circumference 207 of the positioning frame 200.
  • the cable holding section 249 is designed for the secure arrangement of cables 215, for example power supply cables of the drive motor 140 and/or the control electronics 220, on the positioning frame 200.
  • cables 215 for example power supply cables of the drive motor 140 and/or the control electronics 220
  • the cable holding section 249 preferably has two holding webs 911, 912 which are arranged approximately perpendicular to one another and which form a cable receptacle 913.
  • the two holding webs 911, 912 are preferably parallel to the longitudinal or rotation axis 103 of Fig. 1 arranged.
  • the holding webs 911, 912 have a length of approximately 1 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
EP23193263.3A 2022-09-28 2023-08-24 Machine-outil portative dotée d'un cadre de positionnement Pending EP4344828A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022210259.2A DE102022210259A1 (de) 2022-09-28 2022-09-28 Handwerkzeugmaschine mit einem Positionierungsgerüst

Publications (1)

Publication Number Publication Date
EP4344828A1 true EP4344828A1 (fr) 2024-04-03

Family

ID=87801019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23193263.3A Pending EP4344828A1 (fr) 2022-09-28 2023-08-24 Machine-outil portative dotée d'un cadre de positionnement

Country Status (3)

Country Link
EP (1) EP4344828A1 (fr)
CN (1) CN117773849A (fr)
DE (1) DE102022210259A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112017006690T5 (de) * 2016-12-30 2019-10-02 Bosch Power Tools (China) Co., Ltd. Elektrischer Schraubendreher
DE102019213742A1 (de) * 2019-09-10 2021-03-11 Robert Bosch Gmbh Handwerkzeugmaschine
DE202019106969U1 (de) * 2019-12-13 2021-03-16 C. & E. Fein Gmbh Elektrische Handwerkzeugmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016203427A1 (de) 2016-03-02 2017-09-07 Robert Bosch Gmbh Akkupack für eine Handwerkzeugmaschine
DE202019104987U1 (de) 2019-09-10 2019-09-17 Robert Bosch Gmbh Handwerkzeugmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112017006690T5 (de) * 2016-12-30 2019-10-02 Bosch Power Tools (China) Co., Ltd. Elektrischer Schraubendreher
DE102019213742A1 (de) * 2019-09-10 2021-03-11 Robert Bosch Gmbh Handwerkzeugmaschine
DE202019106969U1 (de) * 2019-12-13 2021-03-16 C. & E. Fein Gmbh Elektrische Handwerkzeugmaschine

Also Published As

Publication number Publication date
CN117773849A (zh) 2024-03-29
DE102022210259A1 (de) 2024-03-28

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