EP4008488B1 - Dispositif de machine-outil à main - Google Patents

Dispositif de machine-outil à main Download PDF

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Publication number
EP4008488B1
EP4008488B1 EP21216030.3A EP21216030A EP4008488B1 EP 4008488 B1 EP4008488 B1 EP 4008488B1 EP 21216030 A EP21216030 A EP 21216030A EP 4008488 B1 EP4008488 B1 EP 4008488B1
Authority
EP
European Patent Office
Prior art keywords
intermediate shaft
bearing
power tool
tool device
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.)
Active
Application number
EP21216030.3A
Other languages
German (de)
English (en)
Other versions
EP4008488A1 (fr
Inventor
Jens Blum
Tobias Herr
Dietmar Saur
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP4008488A1 publication Critical patent/EP4008488A1/fr
Application granted granted Critical
Publication of EP4008488B1 publication Critical patent/EP4008488B1/fr
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Anticipated expiration legal-status Critical

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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
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • 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
    • 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
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • 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
    • 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

  • a hand-held power tool device has already been proposed with a drive unit which has at least one drive shaft, and with at least one rotary impact mechanism which has at least one intermediate shaft which is at least substantially aligned with the drive shaft, and with at least one bearing for supporting the drive shaft.
  • a power-driven working machine which comprises an outer casing, a drive motor arranged in the casing for driving a tool part, a drive shaft extending from the drive motor, an electrical element for operating the drive motor, a heat radiation block fixedly attached to the drive motor, a power control element fixedly attached to the heat radiation block for controlling a rotational speed of the drive motor, and a device which prevents rotational movement of the drive motor in engagement with the heat radiation block with the outer casing.
  • JP 2005 066804 A discloses a rotary impact wrench with a motor, a housing in which the motor is arranged, a planetary gear and a rotary impact mechanism.
  • the invention is based on a hand-held power tool device with a drive unit which has at least one drive shaft, and with at least one rotary impact mechanism which has at least one intermediate shaft which is aligned at least substantially in alignment with the drive shaft, and with at least one bearing for supporting the drive shaft.
  • the bearing is arranged at least partially in a plane intersecting the intermediate shaft, which plane runs at least substantially perpendicular to the intermediate shaft.
  • a "handheld power tool device” is to be understood as at least one part, in particular a subassembly, of a handheld power tool.
  • the handheld power tool device can also comprise the entire handheld power tool.
  • the handheld power tool can be designed as any desired, preferably electrical, machine, but advantageously as a rotary impact wrench.
  • a "drive unit” is to be understood as a unit that is intended, in particular,
  • a “bearing” is understood to mean, in particular, a radial bearing designed to rotatably support the drive shaft relative to the intermediate shaft.
  • the term "essentially perpendicular” is intended here to define, in particular, an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, particularly viewed in a plane, enclose an angle of 90° and the angle has a maximum deviation of, in particular, less than 8°, advantageously less than 5°, and particularly advantageously less than 2°.
  • the plane intersects both the intermediate shaft and the drive shaft at least essentially perpendicularly.
  • the drive shaft is preferably mounted at least partially within the intermediate shaft.
  • Such a configuration makes it possible to provide a generic handheld power tool device with advantageous design properties.
  • an advantageously compact design in particular an advantageously short overall length, of the rotary impact mechanism can be achieved.
  • the length of the handheld power tool device is, for example, a maximum of 200 mm, in particular a maximum of 160 mm, most particularly a maximum of 140 mm, and particularly preferably a maximum of 130 mm.
  • the length of the handheld power tool device includes, in particular, the drive unit and the rotary impact mechanism, as well as a tool holder.
  • the intermediate shaft have at least one receiving recess, which is provided for at least partially receiving the drive shaft.
  • the receiving recess extends along a rotational axis of the intermediate shaft.
  • the drive shaft protrudes at least partially into the intermediate shaft, in particular into the receiving recess of the intermediate shaft.
  • the bearing can be designed as a plain bearing and/or a roller bearing.
  • the bearing is at least partially designed as a roller bearing, for example, as a ball bearing, roller bearing, or needle bearing.
  • the bearing is arranged at least partially, advantageously completely, within the recess. This allows for advantageously low-friction mounting of the drive shaft.
  • an advantageously short overall length of the rotary impact mechanism can be achieved.
  • the intermediate shaft have at least one sealing element receptacle.
  • the sealing element receptacle is arranged directly at an insertion opening of the receiving recess of the intermediate shaft, which is provided for inserting a drive shaft into the intermediate shaft.
  • the sealing element receptacle is provided in particular for at least partially receiving a sealing element, in particular a sealing ring and/or a shaft sealing ring.
  • the intermediate shaft has at least one sealing element arranged in the sealing element receptacle.
  • the sealing element is designed in particular as a shaft sealing ring, in particular as a radial shaft sealing ring.
  • the sealing element is provided in particular for at least substantially sealing the rotary impact mechanism, in particular the planetary gear of the rotary impact mechanism, from its surroundings. In this way, an advantageously reliable sealing of the rotary impact mechanism can be achieved.
  • a handheld power tool in particular a rotary impact wrench, with at least one handheld power tool device according to the invention is proposed.
  • the handheld power tool can have an advantageously short overall length.
  • the handheld power tool device according to the invention is not intended to be limited to the application and embodiment described above.
  • the handheld power tool device according to the invention may have a number of individual elements, components, and units that differs from the number stated herein to fulfill a function described herein.
  • FIG. 1 shows a handheld power tool 34a, which is designed as a rotary impact wrench, in a schematic partial sectional view.
  • the handheld power tool 34a is designed as a cordless rotary impact wrench.
  • the handheld power tool 34a comprises a handle 80, which extends perpendicular to a rotational axis 84a of a tool holder 86a of the handheld power tool 34a, which is provided for receiving an insert tool (not shown here).
  • the handle 80a comprises a battery receptacle 90a on a side 88a facing away from the handheld power tool 34a.
  • the battery receptacle 90a is intended to accommodate a battery unit 92a for supplying power to the handheld power tool 34a.
  • the hand-held power tool 34a has a hand-held power tool device 10a with a drive unit 12a and a rotary impact mechanism 16a.
  • Figure 2 shows the handheld power tool device 10 in a sectional view.
  • the handheld power tool device 10a has a drive housing 72a and a percussion mechanism housing 74a (cf. Figure 1 ).
  • the drive housing 72a at least substantially completely encloses the drive unit 12a.
  • the impact mechanism housing 74a at least substantially completely encloses the rotary impact mechanism 16a (cf. Figure 1 ).
  • the drive unit 12a is designed as an electric drive unit, which is supplied with electrical energy by means of the battery unit 92a.
  • the drive unit 12a has a housing-free electric motor 26a, which is intended to convert the electrical energy provided by the battery unit 92a into rotational energy.
  • the electric motor 26a is designed as an open-frame motor, in which components of the electric motor 26a are individually mounted in the drive housing 72a.
  • the drive unit 12a has a drive shaft 14a, which is intended to transmit the rotational energy to the rotary impact mechanism 16a.
  • the drive shaft 14a is formed entirely by an armature shaft 28a of the housing-free electric motor 26a.
  • the armature shaft 28a is designed as a one-piece.
  • the rotary impact mechanism 16a is designed as a V-groove rotary impact mechanism.
  • the rotary impact mechanism 16a is designed to convert a continuous power output of the drive unit 12a into an impact-shaped rotary pulse.
  • the power of the drive unit 12a is transmitted to the insert tool by means of a high-power pulse through a striker 96a of the rotary impact mechanism 16a striking a corresponding anvil 100a of an output spindle 15a.
  • the anvil 100a is formed integrally with the output spindle 15a and the tool holder 86a.
  • the striker 96a is mounted in such a way that axial and radial movement is possible.
  • the axial movement is controlled by V-shaped grooves 98a (see. Figure 3 ) and driving balls 97a (cf. Figure 1 ).
  • a spring 138a ensures the return movement of the striker 96a.
  • the rotary impact mechanism 16a has an intermediate shaft 18a, which is at least substantially aligned with the drive shaft 14a. Furthermore, the Hand-held power tool device 10a has at least one bearing 20a for supporting the drive shaft 14a. The bearing 20a is arranged at least partially in a plane 22a intersecting the intermediate shaft 18a, which plane runs at least substantially perpendicular to the intermediate shaft 18a. The drive shaft 14a is mounted at least partially within the intermediate shaft 18a. The intermediate shaft 18a has a receiving recess 24a, which is provided for at least partially receiving the drive shaft 14a. The receiving recess 24a extends at least substantially along a rotational axis 108a of the intermediate shaft 18a.
  • the drive shaft 14a projects at least partially into the intermediate shaft 18a, in particular into the receiving recess 24a of the intermediate shaft 18a.
  • the bearing 20a for supporting the drive shaft 14a is arranged within the receiving recess 24a.
  • the bearing 20a for supporting the drive shaft 14a is designed as a rolling bearing.
  • the intermediate shaft 18a further has a sealing element receptacle 30a.
  • the sealing element receptacle 30a is arranged directly at an insertion opening 136a of the receiving recess 24a of the intermediate shaft 18a, which is provided for inserting the drive shaft 14a into the intermediate shaft 18a.
  • the intermediate shaft 18a has at least one sealing element 32a arranged in the sealing element receptacle 30a.
  • the sealing element 32a is designed as a shaft sealing ring, in particular as a radial shaft sealing ring, which, in an assembled state, is arranged between the drive shaft 14a and the intermediate shaft 18a.
  • the sealing element receptacle 30a is designed as a shaft sealing ring receptacle.
  • a further bearing 102a for supporting the drive shaft 14a is arranged on a side 104a of the electric motor 26a facing away from the tool holder 86a in the drive housing 72a.
  • the handheld power tool device 10a has a cooling air unit 36a, which comprises at least one fan wheel 38a arranged between the drive unit 12a and the rotary impact mechanism 16a.
  • the fan wheel 38a is provided in particular for generating a cooling air flow for cooling the rotary impact mechanism 16a and/or the drive unit 12a.
  • the fan wheel 38a is arranged in a rotationally fixed manner on the drive shaft 14a of the drive unit 12a.
  • the drive unit 12a is provided to set the fan wheel 38a in a rotational movement during operation of the handheld power tool 34a.
  • the fan wheel 38a and the rotary impact mechanism 16a overlap at least partially in the axial direction 40a.
  • the fan wheel 38a projects at least partially beyond the rotary impact mechanism 16a in the axial direction 40a.
  • the fan wheel 38a has a plurality of fan wheel blades 110a arranged in the circumferential direction, which overlap at least part of the rotary impact mechanism 16a in the circumferential direction.
  • the fan wheel blades 110a extend at least substantially in the axial direction 40a.
  • the rotary impact mechanism 16a has at least one gear unit 42a designed as a single-stage planetary gear 50a.
  • the bearing 20a for supporting the drive shaft 14a is arranged on a side of the planetary gear 50a facing away from the drive unit 12a.
  • a toothing 144a between the drive shaft 14a and the planetary gear 50a is arranged between the bearing 20a and the bearing 102a.
  • the gear unit 42a can be designed as a multi-stage planetary gear.
  • the fan wheel 38a and at least the gear unit 42a overlap at least partially in the axial direction 40a.
  • the planetary gear 50a comprises at least one ring gear 46a.
  • the rotary impact mechanism 16a further comprises a percussion mechanism cover 44a.
  • the percussion mechanism cover 44a is arranged between the drive unit 12a and the planetary gear 50a.
  • the percussion mechanism cover 44a is intended to at least largely close the rotary impact mechanism 16a in the direction of the drive unit 12a.
  • the percussion mechanism cover 44a has a passage recess 106a, which is provided for at least partially passing through at least the drive shaft 14a.
  • the percussion mechanism cover 44a is formed integrally with the ring gear 46a.
  • the percussion mechanism cover 44a and the ring gear 46a consist at least substantially of a metallic material, in particular of a metallic sintered material.
  • the fan wheel 38a and at least the percussion mechanism cover 44a preferably overlap at least partially in the axial direction 40a.
  • the handheld power tool device 10 further comprises an intermediate shaft bearing 48a for supporting the intermediate shaft 18a.
  • the intermediate shaft bearing 48a is designed as a roller bearing. Alternatively, the intermediate shaft bearing 48a can be designed as a plain bearing.
  • the intermediate shaft bearing 48a is designed as a radial bearing, which is intended to rotatably support the intermediate shaft 18a in the impact mechanism cover 44a.
  • the intermediate shaft bearing 48a is arranged at least partially within an impact mechanism cover 44a of the rotary impact mechanism 16a.
  • the intermediate shaft bearing 48a is arranged directly on the through-hole 106a of the impact mechanism cover 44a.
  • the intermediate shaft bearing 48a is arranged on the side of the impact mechanism cover 44a facing the tool holder 86a.
  • the impact mechanism cover 44a has at least one bearing receptacle 52a, which is used to receive the intermediate shaft bearing 48a is provided.
  • the bearing receptacle 52a is formed integrally with the striking mechanism cover 44a.
  • the bearing receptacle 52a is arranged in the region of the through-hole 106a of the striking mechanism cover 44a.
  • the bearing receptacle 52a is at least substantially hollow-cylindrical.
  • the bearing receptacle 52a has, at an end facing away from the striking mechanism cover 44a, an at least substantially annular stop element 112a for the intermediate shaft bearing 48a.
  • the stop element 112a is formed integrally with the bearing receptacle 52a.
  • An inner diameter of the bearing receptacle 52a corresponds at least substantially to an outer diameter of the intermediate shaft bearing 48a.
  • the intermediate shaft bearing 48a is preferably fixed in the bearing receptacle 52a by a press fit.
  • the fan wheel 38a and at least the intermediate shaft bearing 48a and/or the intermediate shaft 18a overlap at least partially in the axial direction 40a.
  • Figure 3 shows the intermediate shaft 18a in a perspective view.
  • Figure 4 shows the intermediate shaft 18a in a sectional view along the section plane III-III.
  • the intermediate shaft 18a is designed as a planet gear carrier 94a of the planetary gear 50a.
  • the intermediate shaft 18a has a plurality of planet gear receptacles 54a, 56a, 58a and planet gear bearing points 60a, 62a, 64a arranged in the circumferential direction.
  • a planet gear 130a is arranged, which is rotatably mounted by means of a pin 132a.
  • the intermediate shaft 18a has at least one material recess 66a, 68a, 70a on its outer circumference, at least in the region of at least one planet gear bearing point 60a, 62a, 64a.
  • a number of material recesses 66a, 68a, 70a corresponds to a number of planetary gear receptacles 54a, 56a, 58a.
  • Each planetary gear receptacle 54a, 56a, 58a is assigned exactly one material recess 66a, 68a, 70a.
  • the intermediate shaft 18a has three planetary gear receptacles 54a, 56a, 58a, each with a planetary gear bearing point 60a, 62a, 64a.
  • the planetary gear bearing points 60a, 62a, 64a are arranged on the intermediate shaft 18a, offset from one another by at least 120° in the circumferential direction.
  • the planetary gear receptacles 54a, 56a, 58a are separated from one another by webs 124a extending radially to a longitudinal extension direction 122a of the intermediate shaft 18a.
  • the planetary gear receptacles 54a, 56a, 58a are delimited by two disc-shaped wall elements 126a, 128a, which are arranged at least substantially perpendicular to the longitudinal direction 122a.
  • the wall elements 126a, 128a are at least substantially circular.
  • the wall elements 126a, 128a are formed integrally with the intermediate shaft 18a.
  • the material recesses 66a, 68a, 70a are at least substantially circular segment-shaped.
  • the planetary gear receptacles 54a, 56a, 58a are at least substantially cylindrical segment-shaped.
  • the material recesses 66a, 68a, 70a are formed in one of the wall elements 126a, 128a.
  • the material recesses 66a, 68a, 70a are formed in the wall element 126a, which, in an assembled state of the intermediate shaft 18a, is arranged in the direction of a drive unit 12a.
  • the wall elements 126a, 128a have an at least substantially identical radius. Alternatively, one of the wall elements 126a, 128a may have a smaller radius.
  • the material recesses 66a, 68a, 70a are provided during the manufacture of the intermediate shaft 18a for temporarily at least partially receiving a milling head spindle 78a (cf. Figure 5 ).
  • the planetary gear receptacles 54a, 56a, 58a are introduced into a blank of the intermediate shaft 18a by means of a side milling cutter 134a.
  • a milling head spindle 78a of the side milling cutter 134a is at least partially inserted into a material recess 66a, 68a, 70a.
  • the planetary gear receptacles 54a, 56a, 58a are introduced into the intermediate shaft 18a in a common method step at least substantially simultaneously, in particular by means of a plurality of identical side milling cutters 134a.
  • the side milling cutters 134a are brought towards the intermediate shaft 18a in such a way that the milling head spindles 78a run at least substantially parallel to a longitudinal extension direction 122a of the intermediate shaft 18a at all times.
  • Figure 6 shows the hand tool 34a in a frontal view.
  • Figure 7 shows a sectional view of the handheld power tool 34a along section line VI-VI.
  • the ring gear 46a of the planetary gear 50a is clamped between the drive housing 72a and the impact mechanism housing 74a.
  • the drive housing 72a and the impact mechanism housing 74a have a clamping surface 114a, which, in an assembled state, each bears from opposite sides against at least one surface 116a of the ring gear 46a and each exerts a clamping force on the ring gear 46a.
  • the ring gear 46a is fixed to the drive housing 72a by means of at least one screw element 76a, preferably by means of at least one screw.
  • the ring gear 46a is fixed, for example, with four screw elements 76a.
  • the ring gear 46a has recesses 118a on an outer circumference, which are provided for the passage of the screw elements 76a.
  • the drive housing 72a has a number of threaded recesses 120a corresponding to the number of screw elements 76a, which have a thread corresponding to a thread of the screw elements 76a.
  • the drive housing 72a, the percussion mechanism housing 74a, and the ring gear 46a are connected to one another in an assembled state by means of the screw elements 76a, with the ring gear 46a being arranged between the drive housing 72a and the percussion mechanism housing 74a.
  • the ring gear 46a can be fixed to the percussion mechanism housing 74a by means of at least one screw element 76a.
  • FIG 8 shows an embodiment of the handheld power tool device 10b according to the invention in a sectional view.
  • the handheld power tool device 10b has a drive unit 12b and a rotary impact mechanism 16b with a planetary gear 50b.
  • the drive unit 12b has a housing-free electric motor 26b, which is intended to convert electrical energy into rotational energy.
  • the electric motor 26b is designed as an open-frame motor.
  • the drive unit 12b has a drive shaft 14b, which is intended to transmit the rotational energy to the rotary impact mechanism 16b.
  • the drive shaft 14b is partially formed by an armature shaft 28b of the housing-free electric motor 26b.
  • the rotary impact mechanism 16b has an intermediate shaft 18b, which is at least substantially aligned with the drive shaft 14b. Furthermore, the hand-held power tool device 10b has at least one bearing 20b for supporting the drive shaft 14b.
  • the drive shaft 14b is at least partially disposed within the intermediate shaft. 18b.
  • the intermediate shaft 18b has a receiving recess 24b, which is provided for at least partially receiving the drive shaft 14b.
  • the bearing 20b is arranged directly at an insertion opening 136b of the receiving recess 24b of the intermediate shaft 18b, which is provided for inserting the drive shaft 14b into the intermediate shaft 18b.
  • the bearing 20b for supporting the drive shaft 14b is arranged on a side of the planetary gear 50b facing the drive unit 12b.
  • the bearing 20b is designed as a roller bearing.
  • FIG 9 shows a further embodiment of the handheld power tool device 10c according to the invention in a sectional view.
  • the handheld power tool device 10c has a drive unit 12c and a rotary impact mechanism 16c with a planetary gear 50c.
  • the drive unit 12c has a housing-free electric motor 26c, which is intended to convert electrical energy into rotational energy.
  • the electric motor 26c is designed as an open-frame motor.
  • the drive unit 12c has a drive shaft 14b, which is intended to transmit the rotational energy to the rotary impact mechanism 16c.
  • the drive shaft 14c is partially formed by an armature shaft 28c of the housing-free electric motor 26c.
  • the rotary impact mechanism 16c has an intermediate shaft 18c, which is at least substantially aligned with the drive shaft 14c. Furthermore, the handheld power tool device 10c has at least one bearing 20c for supporting the drive shaft 14c.
  • the drive shaft 14c is at least partially mounted within the intermediate shaft 18c.
  • the intermediate shaft 18c has a receiving recess 24c, which is provided for at least partially receiving the drive shaft 14c.
  • the bearing 20c is arranged directly at an insertion opening 136c of the receiving recess 24c of the intermediate shaft 18c, which is provided for inserting the drive shaft 14c into the intermediate shaft 18c.
  • the bearing 20c for supporting the drive shaft 14c is arranged on a side of the planetary gear 50c facing the drive unit 12c.
  • the bearing 20c is designed as a ball bearing.
  • the handheld power tool device 10c has a sealing ring 140c, which surrounds the bearing 20c in the circumferential direction and is arranged between the bearing 20c and an inner diameter receiving recess 24c of the intermediate shaft 18c.
  • the intermediate shaft 18c has a groove 142c, which is provided for receiving the sealing ring 140c.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Portable Power Tools In General (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Retarders (AREA)

Claims (15)

  1. Dispositif de machine-outil portative avec une unité d'entraînement (12a ; 12b ; 12c) qui présente au moins un arbre d'entraînement (14a ; 14b ; 14c), et avec au moins un mécanisme de percussion rotatif (16a ; 16b ; 16c) qui présente au moins un arbre intermédiaire (18a; 18b; 18c) orienté au moins essentiellement dans l'alignement de l'arbre d'entraînement (14a ; 14b ; 14c), et avec au moins un palier (20a ; 20b ; 20c) pour le montage de l'arbre d'entraînement (14a ; 14b ; 14c), le palier (20) étant agencé au moins partiellement dans un plan (22a; 22b; 22c) coupant l'arbre intermédiaire (18a ; 18b ; 18c) lequel s'étend au moins essentiellement perpendiculairement à l'arbre intermédiaire (18a ; 18b ; 18c), et avec un palier d'arbre intermédiaire (48a ; 48b ; 48c) pour le montage de l'arbre intermédiaire (18a ; 18b ; 18c), le palier (20) étant agencé radialement entre l'arbre d'entraînement (14a ; 14b ; 14c) et l'arbre intermédiaire (18a ; 18b ; 18c), caractérisé en ce que l'arbre intermédiaire (18a ; 18b ; 18c) est agencé radialement, au moins par sections, entre le palier (20) et le palier d'arbre intermédiaire (48a ; 48b ; 48c).
  2. Dispositif de machine-outil portative selon la revendication 1, caractérisé en ce que l'arbre d'entraînement (14a ; 14b ; 14c) est au moins partiellement monté à l'intérieur de l'arbre intermédiaire (18a ; 18b ; 18c).
  3. Dispositif de machine-outil portative selon la revendication 1 ou 2, caractérisé en ce que l'arbre intermédiaire (18a ; 18b ; 18c) présente au moins un évidement de logement (24a ; 24b ; 24c) qui est prévu pour un logement au moins partiel de l'arbre d'entraînement (14a ; 14b ; 14c).
  4. Dispositif de machine-outil portative selon la revendication 3, caractérisé en ce que le palier (20a ; 20b ; 20c) est agencé au moins partiellement à l'intérieur de l'évidement de logement (24a ; 24b ; 24c).
  5. Dispositif de machine-outil portative selon l'une quelconque des revendications précédentes, caractérisé en ce que le palier (20a ; 20b ; 20c) est au moins partiellement configuré en tant que palier à roulement.
  6. Dispositif de machine-outil portative selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'entraînement (12a ; 12b ; 12c) présente au moins un moteur électrique sans boîtier (26a ; 26b ; 26c).
  7. Dispositif de machine-outil portative selon la revendication 6, caractérisé en ce que l'arbre d'entraînement (14a ; 14b ; 14c) est au moins partiellement formé par un arbre d'induit (28a ; 28b ; 28c) du moteur électrique sans boîtier (26a ; 26b ; 26c).
  8. Dispositif de machine-outil portative selon l'une quelconque des revendications précédentes, caractérisé en ce que l'arbre intermédiaire (18a ; 18b ; 18c) présente au moins un logement d'élément d'étanchéité (30a ; 30b ; 30c).
  9. Dispositif de machine-outil portative selon la revendication 8, caractérisé en ce que l'arbre intermédiaire (18a ; 18b ; 18c) présente au moins un élément d'étanchéité (32a ; 32b ; 32c) agencé dans le logement d'élément d'étanchéité (30a ; 30b ; 30c).
  10. Dispositif de machine-outil portative selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une longueur du dispositif de machine-outil portative est d'au plus 200 mm, particulièrement d'au plus 160 mm, tout particulièrement d'au plus 140 mm, de manière particulièrement préférée d'au plus 130 mm.
  11. Dispositif de machine-outil portative selon l'une quelconque des revendications précédentes, caractérisé en ce que le palier (20) et le palier d'arbre intermédiaire (48a ; 48b ; 48c) sont agencés de manière à se chevaucher au moins par sections.
  12. Dispositif de machine-outil portative selon la revendication 11, caractérisé en ce que le palier d'arbre intermédiaire (48a ; 48b, 48c) est agencé au moins partiellement à l'intérieur d'un couvercle de mécanisme de percussion (44a ; 44b ; 44c) du mécanisme de percussion rotatif (16a ; 16b ; 16c).
  13. Dispositif de machine-outil portative selon la revendication 11 ou 12, caractérisé en ce que le palier d'arbre intermédiaire (48a ; 48b ; 48c) est agencé directement sur un évidement de passage (106a ; 106b ; 106c) du couvercle de mécanisme de percussion (44a ; 44b ; 44c).
  14. Dispositif de machine-outil portative selon la revendication 12 ou 13, caractérisé en ce que le couvercle de mécanisme de percussion (44a ; 44b ; 44c) présente au moins un logement de palier (52a ; 52b ; 52c) qui est prévu pour recevoir le palier d'arbre intermédiaire (48a ; 48b ; 48c).
  15. Machine-outil portative munie d'au moins un dispositif de machine-outil portative (10a ; 10b ; 10c) selon l'une quelconque des revendications précédentes.
EP21216030.3A 2016-07-11 2017-07-11 Dispositif de machine-outil à main Active EP4008488B1 (fr)

Applications Claiming Priority (4)

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DE102016212607 2016-07-11
DE102017211772.9A DE102017211772A1 (de) 2016-07-11 2017-07-10 Handwerkzeugmaschinenvorrichtung
PCT/EP2017/067398 WO2018011203A1 (fr) 2016-07-11 2017-07-11 Système de machine-outil portative
EP17739956.5A EP3481593B1 (fr) 2016-07-11 2017-07-11 Système de machine-outil portative

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EP17739956.5A Division-Into EP3481593B1 (fr) 2016-07-11 2017-07-11 Système de machine-outil portative
EP17739956.5A Division EP3481593B1 (fr) 2016-07-11 2017-07-11 Système de machine-outil portative

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EP4008488B1 true EP4008488B1 (fr) 2025-05-14

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EP (2) EP4008488B1 (fr)
JP (1) JP6916819B2 (fr)
CN (1) CN109476006B (fr)
DE (1) DE102017211772A1 (fr)
WO (1) WO2018011203A1 (fr)

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USD1090213S1 (en) 2023-10-26 2025-08-26 Snap-On Incorporated Tool housing

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Publication number Publication date
DE102017211772A1 (de) 2018-01-11
CN109476006A (zh) 2019-03-15
EP3481593B1 (fr) 2022-01-26
JP2019524457A (ja) 2019-09-05
WO2018011203A1 (fr) 2018-01-18
CN109476006B (zh) 2022-08-30
EP4008488A1 (fr) 2022-06-08
US11148275B2 (en) 2021-10-19
US20190291259A1 (en) 2019-09-26
JP6916819B2 (ja) 2021-08-11
EP3481593A1 (fr) 2019-05-15

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