Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
  • B23D59/00—Accessories specially designed for sawing machines or sawing devices
  • B23D59/006—Accessories specially designed for sawing machines or sawing devices for removing or collecting chips
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
  • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
  • B23Q11/0042—Devices for removing chips
  • B23Q11/0046—Devices for removing chips by sucking

Definitions

• the invention relates to a hand tool according to the preamble of claim 1.
• the hand tool machine has a drive unit with a drive shaft.
• the hand tool machine has a dust extraction device with a suction unit and a drive shaft.
• the invention relates to a hand tool, in particular a hand tool for sawing, with a drive unit, which has a drive shaft, and a dust extraction device with a suction unit and a drive shaft.
• the hand tool machine has a gear unit which is the drive shaft of the suction unit upstream, whereby an advantageous adaptation with respect to a rotational speed, a torque, a rotational direction and / or a force flow direction can be achieved.
• a force flow direction can advantageously be adapted to a construction space.
• a "gear unit” is to be understood as a unit which is provided for the transmission or conversion of forces and / or moments, wherein a conversion of a force and / or a moment preferably a change of a magnitude of a force and / or a torque, a change of a rotational speed and / or a moment and / or a change in a force flow direction
• the dust suction device or the suction unit preferably has a fan for generating a suction air flow, which is set in rotation via the drive shaft.
• the dust extraction device is provided in particular for dust or dirt suction during normal operation of the power tool, wherein the power tool is formed in particular by a hand tool with an operating function intended for sawing, such as a jig saw, or other, the expert appears useful as craft generating machines.
• the gear unit is arranged between the drive shaft of the drive unit and the drive shaft of the dust extraction device, whereby structurally simple a generated to a drive of the power tool drive torque can be advantageously used to generate a suction air flow within the Staubabsaug- device.
• the term "between” is intended here to mean, in particular, along a direction of force flow. see two units arranged to be understood.
• the dust extraction device can also have its own drive unit, which generates a drive torque which is transmitted from the gear unit via a drive shaft to the suction unit or to a fan of the suction unit.
• the transmission unit is formed by a bevel gear, whereby a particularly
• a particularly space-saving arrangement of the dust extraction device within the power tool can be advantageously achieved when the drive shaft of the dust extraction device is arranged inclined relative to the drive shaft of the drive unit.
• "arranged inclined to one another” should be understood to mean that an orientation, preferably an axis of rotation, of the drive shaft of the dust extraction device with an orientation, preferably a rotation axis, of the drive shaft of the drive unit forms an angle which is preferably greater than 0 ° and preferably less than 180 ° is.
• the drive shaft of the dust extraction device is inclined relative to the drive shaft of the drive unit substantially at 90 °, so that an advantageous dust and dirt separation can be achieved by utilizing a gravitational force in a normal operating position of the power tool.
• the drive shaft of the dust extraction device to a drive direction, which is directed in the normal operating position of the power tool in the direction of gravity, wherein a dust collecting means of the dust extraction device is expediently viewed from the drive shaft in the direction of gravity.
• substantially inclined by 90 ° is understood to mean that an angle of inclination of the drive shaft of the dust extraction device relative to the drive shaft of the drive unit is 90 ° ⁇ 5 ° due to tolerances.
• the dust extraction device has a separation unit, which is connected upstream of a suction air flow of the dust extraction device of the suction unit, whereby an advantageous dust and dirt separation can be achieved and thus purified by dust and dirt particles suction air flow through the suction unit, in particular by a fan of the suction unit, flows.
• this can advantageously increase a lifetime of the suction unit.
• a particularly high flexibility of the hand tool for use with different fields of application can advantageously be achieved for an operator of the hand tool if the hand tool has a coupling means, via which the dust suction device, in particular special for an operator, is arranged detachably.
• the coupling means by means of the coupling means, a tool-free assembly or disassembly of the dust extraction device on the hand tool machine for an operator is possible.
• the separation unit has a dust collection container which is arranged detachably on the dust extraction device, whereby a structurally simple removal or attachment of the dust collection container and thus an increased
• the dust collecting container has at least one cover on which at least one
• Dust separating means of the dust extraction device is arranged, whereby a particularly secure and stable arrangement of Staubabscheideschs within the dust collection container, preferably in the region of the suction air stream, can be achieved.
• the cover has at least one latching element which is provided for a tool-free installation and / or disassembly of the cover, whereby a particularly comfortable cleaning of Staubabscheideffens can be advantageously achieved for an operator.
• Fig. 1 is a partial section of an inventive
• Fig. 3 shows the hand tool with an alternative to Figure 1 dust extraction device in a side view.
• FIG. 1 shows a partial section of a handheld power tool 10a according to the invention, formed by a jigsaw, with a dust extraction device 16a.
• the hand tool 10a has a drive unit 12a with a drive shaft 14a.
• the handheld power tool 10a comprises a suction channel 38a, which in an operation of the handheld power tool 10a on a side facing a workpiece 40a is arranged in the hand tool 10a. Via the suction channel 38a, dust and dirt accumulating in the region of the sawing tool during operation of the handheld power tool 10a are drawn in and directed to the dust suction device 16a.
• the dust extraction device 16a is provided for sucking off dust and dirt particles during operation of the handheld power tool 10a and arranged on a rear side 42a of the handheld power tool 10a facing away from the sawing tool (FIG. 1).
• the dust extraction device 16a has a separation unit 18a, a suction unit 20a and a drive shaft 22a.
• the dust extraction device 16a is driven via the drive unit 12a or the drive shaft 14a of the handheld power tool 10a, which, during operation of the hand tool 10a, transmits a drive torque via a coupling means 44a to an intermediate shaft 46a of the dust extraction device 16a along a force flow direction.
• the intermediate shaft 46a is aligned coaxially with the drive shaft 14a of the drive unit 12a and supported within the dust extractor 16a by means of a ball bearing 48a on a housing 50a of the dust extractor 16a in an axial direction 52a.
• the intermediate shaft 46a transmits the drive torque to a gear unit 24a, which is arranged inside the dust extraction device 16a (FIGS. 1 and 2).
• the transmission unit 24a is provided for transmitting a drive torque to the drive shaft 22a of the dust extraction device 16a, wherein a change in a direction and / or a rotational speed of the drive torque takes place during the transmission.
• the gear unit 24a of a Angular gear 26a formed and transmits a torque to the drive shaft 22a of the dust extraction device 16a, which is provided to drive a fan 54a of the suction unit 20a, wherein the drive shaft 22a of Staubabsaugvorrich- device 16a is aligned perpendicular to the intermediate shaft 46a.
• the drive shaft 14a of the drive unit 12a facing away from the end 56a of the intermediate shaft 46a this is rotationally connected to a bevel gear 58a.
• the bevel gear 58a of the intermediate shaft 46a meshes in operation of the power tool 10a and the dust extraction device 16a with another bevel gear 60a, which is rotationally mounted on the drive shaft 22a of the dust extraction device 16a.
• the angular gear 26a By means of the angular gear 26a, the drive torque of the intermediate shaft 46a on the drive shaft 22a of the dust extraction device 16a and on the fan 54a of the suction unit 20a along a
• the drive shaft 22a of the dust exhaust device 16a is connected to the housing 50a of the dust exhaust device 16a perpendicular to the intermediate shaft 46a and perpendicular to the workpiece facing side 40a via a ball bearing 62a and a guide 64a disposed on the housing 50a of the dust exhaust device 16a Hand tool 10 a stored.
• a ball bearing 62a and a guide 64a disposed on the housing 50a of the dust exhaust device 16a Hand tool 10 a stored.
• an alternative arrangement of the drive shaft 22a of the dust extraction device 16a relative to the intermediate shaft 46a or the drive shaft 14a of the drive unit 12a which appears appropriate to a person skilled in the art, is conceivable at any time.
• the drive shaft 22a of the dust extraction device 16a transmits a drive torque to the fan 54a of the suction unit 20a, which in the axial direction 52a of the drive shaft 22a in the direction of the workpiece facing side 40a of the power tool 10a is connected downstream of the bevel gear 60a ( Figures 1 and 2).
• a suction air flow 28a is generated in the separation unit 18a, which is provided via the suction channel 38a of the handheld power tool 10a for dust and dirt extraction during operation of the handheld power tool 10a in a region of the tool.
• the fan 54a of the suction unit 20a is arranged along the suction air flow 28a.
• the separation unit 18a comprises a dust collection container 30a and a dust collecting means 36a formed by a filter medium.
• the suction air flow 28a By means of the suction air flow 28a, the dust and dirt are sucked together with air and via the suction channel 38a to the separation unit 18a, which is connected upstream of the Saugluftstroms 28a of the suction unit 20a.
• the dust and dirt are separated by means of the dust-collecting means 36a inside the dust-collecting container 30a, and the dust-and-dirt-cleaned air is further guided along the suction airflow 28a to the fan 54a of the suction unit 20a and escapes there through the ventilation holes 66a in the housing 50a shown in FIG the dust extractor 16a.
• an insulating ring 78a is arranged, which avoids a direct supply of dusty and dirty suction air in the fan 54a.
• the dust collecting container 30a of the separating unit 18a has a circumferential wall which prevents falling out of dust and dirt from the dust collecting container 30a when the dust collecting container 30a is removed from the hand tool. machine 10a avoids.
• the dust collecting container 30a of the separating unit 18a for cleaning the dust collecting means 36a is detachably mounted to the housing 50a of the dust suction device 16a by means of a sliding mechanism 32a (FIG. 2). In this case, the dust collecting container 30a is pushed at a disassembly of the dust extraction device 16a along a direction 68a ( Figure 1) by an operator, which is parallel to the intermediate shaft 46a and leads away from the power tool 10a.
• the entire dust extractor 16a is detachable from an operator by the portable power tool 10a.
• An attachment of the dust extraction device 16a takes place via the intermediate shaft 46a, which is detachably connected via the coupling means 44a with the power tool 10a.
• the separation unit 18a or the wall of the dust collection container 30a has a recess 80a adapted to the suction channel 38a.
• the separation unit 18a is connected to the intake duct 38a or the dust extraction device 16a is mounted to the handheld power tool 10a by means of a detachable connection, not shown in more detail, which can be formed by a form-locking and / or force-locking and / or integral connection. dismantled.
• FIG. 3 shows an alternative embodiment. Substantially consistent components, features and functions are basically numbered with the same reference numerals. To distinguish the embodiments, however, the letters a and b are added to the reference numerals of the embodiments. The following description is limited essentially to the differences from the exemplary embodiment in FIGS. 1 and 2, wherein reference can be made to the description of the exemplary embodiment in FIGS. 1 and 2 with regard to components, features and functions remaining the same.
• FIG. 3 shows a handheld power tool 10b with a dust extraction device 16b, wherein a drive shaft 14b of a drive unit of the handheld power tool 10b not shown in FIG. 3 directly couples to a drive shaft 16b of the dust extraction device 16b via a gear unit 24b.
• the gear unit 24b is in this case formed by a universal joint 82b.
• the universal joint 82b comprises a coupling means 44b, which receives a form-locking and / or non-positive and, in particular for an operator releasable connection with the drive shaft 22b of the dust extraction device 16b.
• a rotation axis 96b of the drive shaft 22b of the dust extraction device 16b is inclined with respect to a rotation axis 98b of the drive shaft 14b of the drive unit with an inclination angle of about 5 ° to 10 °.
• further inclination angles between the axes of rotation 96b, 98b of the two drive shafts 14b, 22b which appear appropriate to a person skilled in the art, are conceivable at any time in an alternative embodiment of the invention.
• 16b is at an end 84b facing away from the gear unit 24b the drive shaft 22b, a fan 54b of a suction unit 20b arranged rotationally fixed.
• a separation unit 18b is arranged after the fan 54b, which has a dust collection container 30b with a therein
• Dust separating means 36b has. For cleaning the dust collecting container 30b, it has a removable cover 34b on a side 88b of the separating unit 18b facing in the drive direction 86b.
• the dust collecting means 36b is disposed on a side 90b of the cover 34b directed inwardly into the dust collecting container 30b, so that the dust collecting means 36b is removed from the separating unit 18b together with the cover 34b for cleaning the dust collecting container 30b by an operator of the portable power tool 10b. can be removed.
• the cover 34b latching elements 92b, which engage positively in corresponding locking elements 94b on the dust collection container 30b.
• the cover 34b is releasably connected to the separation unit 18b via the two latching elements 92b for an operator.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Sawing (AREA)
• Auxiliary Devices For Machine Tools (AREA)
• Cleaning In General (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38941786

Family Applications (1)

Country Status (6)

Families Citing this family (10)

Citations (2)

Family Cites Families (23)

• 2006
  • 2006-12-27 DE DE102006061623A patent/DE102006061623A1/de not_active Withdrawn
• 2007
  • 2007-10-29 EP EP07821939A patent/EP2104585A1/de not_active Withdrawn
  • 2007-10-29 WO PCT/EP2007/061579 patent/WO2008080649A1/de active Application Filing
  • 2007-10-29 US US12/297,478 patent/US8161652B2/en not_active Expired - Fee Related
  • 2007-10-29 RU RU2009128741/02A patent/RU2464131C2/ru not_active IP Right Cessation
  • 2007-10-29 CN CNA2007800484864A patent/CN101573203A/zh active Pending

Patent Citations (2)

Non-Patent Citations (1)

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