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EP3880402A1 - Machine-outil portative - Google Patents

Machine-outil portative

Info

Publication number
EP3880402A1
EP3880402A1 EP20797050.0A EP20797050A EP3880402A1 EP 3880402 A1 EP3880402 A1 EP 3880402A1 EP 20797050 A EP20797050 A EP 20797050A EP 3880402 A1 EP3880402 A1 EP 3880402A1
Authority
EP
European Patent Office
Prior art keywords
hose
machine tool
handle
holding device
base part
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
EP20797050.0A
Other languages
German (de)
English (en)
Inventor
Johann SCHLOSSER
Simon GROEGER
Hans-Peter Albrecht
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.)
Festool GmbH
Original Assignee
Festool 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 Festool GmbH filed Critical Festool GmbH
Publication of EP3880402A1 publication Critical patent/EP3880402A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/182—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings
    • B24B7/184—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings pole sanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/04—Handle constructions telescopic; extensible; sectional

Definitions

  • the invention relates to a hand-held machine tool with the features of the preamble of claim 1.
  • Hand-operated machine tools of the type mentioned at the beginning are known from the prior art, for example from DE 10 2007 012 394 A1.
  • surfaces for example on walls and ceilings, can be machined, wherein the grinding dust that is produced can be sucked off via a hose connected to the machine tool. This reduces contamination of the environment that occurs during machining.
  • a power supply for the machine tool can be wired take place, for example by means of a cable run parallel to the hose.
  • the hose and cable can lie uncomfortably on a hand or arm of the machine tool user and chafe, especially in machine tools with a lateral hose outlet. This can lead to impairments such as skin injuries (e.g. abrasions) and the like. This affects the handling of such a machine tool.
  • the invention is based on the object of simplifying the handling of a hand-held machine tool with simple structural means. It is desirable that impairments caused by hoses or cables are minimized as far as possible.
  • the hand-held machine tool is characterized in that a hose holding device for holding the hose is provided on the handle part in an arrangement spaced from the hose outlet, in particular along the longitudinal direction of the handle part.
  • the Hose is guided by means of the hose holding device.
  • the hose is held in two places by means of the hose outlet and hose holding device.
  • the hose can be held away from the arm or hand of the user.
  • the hose can be held away in an arc from a grip section of the grip part.
  • the connection cable for supplying energy to the machine tool can also be held or guided in the hose holding device.
  • the hand-held machine tool can be a surface processing machine, in particular a long-neck sander.
  • Walls and ceilings can be sanded with a long-neck sander.
  • plasterboard or drywall filler can be sanded or leftover wallpaper can be removed.
  • the hose can be a suction hose.
  • One end of the hose can be connected to the hose outlet of the machine tool and the other end, for example, to a vacuum cleaner. Grinding dust can be removed via the hose (flow connection).
  • the hose outlet on the machine tool can be flow-connected to the machining head, for example by means of a flow channel extending in or parallel to the connection arrangement.
  • the connecting arrangement can be designed in one piece, for example as a connecting pipe.
  • the Connection arrangement can be formed from two or more connection parts, for example connection pipe sections, which can be coupled to one another. In the assembled state, the connecting parts can form the connecting arrangement. By varying the number of connecting parts, the connecting arrangement can be lengthened or shortened as required.
  • the handle part refers to the part on which the hand-held machine tool can be gripped by a user.
  • the handle part can have at least one handle section at which a user actually grips the handle part, for example by gripping or reaching around with the hand of the user.
  • the handle part can have a housing on or in which one, several or all of the above components of the handle part are arranged.
  • the hose holding device can be arranged on a handle section of the handle part, in particular on an end of the handle section facing away from the connection arrangement. This promotes handling, since the hose is sufficiently at least in a part of the grip section this is spaced. The hose can thus be guided away from the hand and arm of the user.
  • the handle section is the section of the handle part which is provided so that a user grips or grips around the handle part in this section.
  • the hose holding device can advantageously be designed to be removable from the handle part.
  • the hose holding device can be reversibly detached from the handle part and attached to it.
  • the hose holding device can thus be used in a very targeted manner when required.
  • transport is also favored, since the hose holding device can be removed (less space required).
  • the hose holding device can be connected to the handle part by means of a (mechanical) plug connection.
  • a plug connection is provided by means of which the
  • Hose holding device can be connected to the handle part. In the same way, the hose holding device can be removed from the handle part by releasing the plug connection.
  • the hose holding device can be rotatably mounted on the handle part.
  • the alignment of the hose holding device and thus the alignment of the hose with respect to the handle part be adjusted. It is conceivable that the
  • Hose holding device is rotatable relative to the handle part about an axis oriented transversely or orthogonally to the central longitudinal direction of the handle part.
  • the hose holding device can be set up in such a way that, in a holding state (closed state of the hose holding device), it can, in particular, completely encompass the hose. This creates a secure and stable attachment of the hose to the handle part. An undesired sliding out of the hose, as can occur, for example, with retaining clips that are open radially outward, can thus be largely avoided.
  • the hose holding device can advantageously have a base part on which a plug-in pin is formed, which can be inserted into an opening formed in the handle part (matching or corresponding to the plug-in pin). A structurally simple and stable connection of the hose holding device to the handle section is thus created.
  • the plug-in pin and opening can be designed in such a way that the hose holding device on the handle part can be rotated, for example through the cylindrical configuration of the plug-in pin and opening.
  • the base part can surround the hose in sections with respect to the hose circumference.
  • the hose holding device can expediently have a holding part which is fixed at a first end to the base part and which can be detachably connected to the base part at the second end.
  • a holding part which is fixed at a first end to the base part and which can be detachably connected to the base part at the second end.
  • Hose holding device secured or removed from this.
  • the holding part can largely surround the hose in relation to the hose circumference.
  • the base part and the holding part can completely surround the hose in the circumferential direction.
  • Two fastening areas can be formed on the base part.
  • the holding part can be fixed with its first end on the base part.
  • the holding part can be releasably connectable to the base part at its second end.
  • the first fastening area and the second fastening area can be arranged on opposite sides of the plug connection or the plug pin (the latter can be located between the two fastening areas).
  • the holding part at the first end cannot be detachable from the base part in a non-destructive manner. This results in a particularly stable connection of the holding part to the base part.
  • a loss protection is hereby created.
  • the holding part can be designed as a bracket that can be pivoted relative to the base part. This contributes to a stable design of the holding part.
  • the bracket can, for example, be designed as a metal bracket or a plastic bracket.
  • the holding part can be designed as a (not endless, i.e. as a two-ended) rubber band.
  • a connection cable can also be encompassed by the holding part.
  • the rubber band can have an anti-slip effect on the hose. In this way, unwanted slipping of the hose in the hose holding device can be avoided.
  • the rubber band can have one or more, in particular laterally closed, passages at the second end, by means of which the rubber band can be detachably connected to a preferably hook-shaped fastening section formed on the base part. This contributes to a structurally simple attachment of the second end of the rubber band to the base part. If there are several passes, the holding part or the
  • Hose holding device adjustable in diameter.
  • The, preferably hook-shaped, fastening section can be arranged in the second fastening area of the base part be.
  • the fastening section can, for example, be designed as a radially outwardly open hook section to which the second end of the holding part or of the rubber band can be detachably connected.
  • a radially outwardly closed hook section can be formed on which the first end of the holding part or the rubber band is fixed.
  • the fastening is designed in particular in such a way that the holding part or the rubber band cannot be detached from the hook section in a non-destructive manner.
  • the handle part can have a T-shaped handle section, on the narrow sides of which (at the lateral ends of the cross line of the "T") an opening for inserting the plug-in pin of the base part is formed.
  • T-shaped handle section on the narrow sides of which (at the lateral ends of the cross line of the "T") an opening for inserting the plug-in pin of the base part is formed.
  • the handle part can be any material. As already indicated, the handle part can be any material.
  • a further handle section can be connected to this handle section, in particular at the end of the (first) handle section facing away from the connecting arrangement. This favors flexible handling of the hand-held machine tool. In addition to gripping with only one hand in one of the grip sections, it is also possible to grip the grip sections with both hands ("two-hand operation").
  • one or more openings for inserting the plug-in pin of the base part can be formed on the further handle section. This again increases the flexibility of the hose guide, since the hose holding device can also be fastened or inserted into the further grip section.
  • the further handle section can also be T-shaped, with an opening for inserting the plug-in pin of the base part being formed on its narrow sides (at the lateral ends of the cross line of the "T").
  • This favors flexible adaptation of the hose guide, since the hose holding device can be inserted into the T-shaped grip section on both sides.
  • the transversely oriented part of the T-shaped handle section protrudes laterally over further parts of the handle section in relation to the central longitudinal direction of the handle section.
  • the hose can be guided laterally spaced from the handle part or the handle section.
  • Fig.l an embodiment of the hand-held
  • Machine tool with connected hose in a perspective view from one side;
  • FIG. 2 shows the machine tool from FIG. 1 with the hose connected in a perspective view from below;
  • FIG. 3 shows the machine tool from FIG. 1 without a hose in a perspective view from the side;
  • Hose holding device of the machine tool from FIG. 1 in an enlarged perspective view (hose holding device closed);
  • Hose holding device from FIG. 4 in a perspective view from above (hose holding device closed); Fig. 6 the hose holding device of the hand-held
  • FIG. 1 The machine tool from FIG. 1 in a perspective view on its own (hose holding device open);
  • FIG. 1 The machine tool from FIG. 1 with two handle sections in a perspective view from one side.
  • FIG. 1 shows a hand-held machine tool which is designated as a whole with the reference symbol 10 (hereinafter referred to as “machine tool 10”).
  • the machine tool 10 can be a surface processing machine 10 such as, for example, a long-neck sander.
  • the machine tool 10 has a machining head 12, a handle part 14 and a connection arrangement 16 connecting the machining head 12 to the handle part 14.
  • connection arrangement 16 has a connection part 18 which is connected to the machining head 12 and can be coupled to the handle part 14.
  • the connecting part 18 can, for example, be designed as a pipe section. Operating elements and / or display elements can be arranged on the handle part 14 (not shown).
  • a hose section 20 is arranged on the machining head 12, which is flow-connected at one end to a suction point (not shown) on the machining head 12. At the other end, the hose section 20 is flow-connected to a hose outlet 22 formed on the handle part 14, to be precise via a flow channel formed in the connection part 18 (not shown).
  • a hose 24 (suction hose 24) is connected to the hose outlet 22.
  • the other end of the hose 24 can, for example, be connected to a vacuum cleaner (not shown), so that grinding dust can be sucked off from the suction point on the machining head 12.
  • an electrical connection 26 is provided on the handle part 14, to which a connection cable 28 can be connected to supply power to the machine tool 10 (see FIG. 2).
  • the connection cable 28 can be connected to a socket at the other end, for example (not shown).
  • a hose holding device 32 for holding the hose 24 is provided on the handle part 14 in an arrangement spaced apart from the hose outlet 22 along the longitudinal direction 30.
  • the connection cable 28 can optionally also be held in the hose holding device 32 (see FIG. 2).
  • the hose holding device 32 is arranged on a handle section 34 of the handle part 14, specifically on one of the End 36 of handle section 34 facing away from connection arrangement 16.
  • the hose holding device 32 is designed to be removable from the handle part 14.
  • the hose holding device 32 can be reversibly detached from the handle part 14 and fastened to it, so that it can be used for fastening or guiding the hose 24 if necessary.
  • the hose holding device 32 is rotatably mounted on the handle part 14, to be sure about an axis 38 (see FIG. 4).
  • the axis 38 is oriented transversely to the longitudinal direction 30.
  • the hose holding device 32 is set up in such a way that in a holding state (hose holding device 32 is closed) it completely encompasses the hose 24 (see FIGS. 1 and 2).
  • the hose holding device 32 can be connected reversibly to the handle part 14 by means of a mechanical plug connection 40 (see FIG. 4).
  • the hose holding device 32 has a base part 42 on which a plug-in pin 44 is formed, which can be inserted into a matching opening 46, 47, that is to say which corresponds to the plug-in pin 44 and which is formed in the handle part 14. Is the tube 24 in the
  • the base part 42 surrounds the hose 24 in sections in relation to the circumferential direction of the hose 24.
  • the hose holding device 32 also has a holding part 48 which is attached to a first end 50 on the base part 42 is fixed and is releasably connectable to the base part 42 at the second end 52 (see in particular FIG. 6).
  • Two fastening areas 54, 56 are formed on the base part 42.
  • the holding part 48 In the first fastening area 54, the holding part 48 is fixed with its first end 50 on the base part 42.
  • the holding part 48 In the second fastening area 56, the holding part 48 can be detachably connected to the base part 42 by its second end 52.
  • the first fastening area 54 and the second fastening area 56 are arranged on opposite sides of the plug pin 44.
  • the first end 50 of the holding part 48 cannot be detached from the base part 42 in a non-destructive manner.
  • the holding part 48 can be designed as a bracket that can be pivoted relative to the base part 42 (not shown).
  • the holding part 48 is designed as a rubber band with two ends 50, 52. At the second end 52, the rubber band has one or more passages 58 which are closed laterally (only one passage 58 shown here).
  • the rubber band Via the passage or passages 58, the rubber band can be connected to a hook-shaped fastening section 60, which is arranged in the second fastening region 56 of the base part 42.
  • the hook-shaped fastening section 60 is more open than radially outward Hook portion formed.
  • the holding part 48 or the rubber band can be mounted with its second end 52 on the hook section 60 and detached from it.
  • a hook section 62 which is closed radially outward is formed, to which the first end 50 of the holding part 48 or of the rubber band is fixed.
  • the holding part 48 or the rubber band cannot be detached from the hook section 62 in a non-destructive manner. This ensures that the holding part 48 or the rubber band always stay together (protection against loss).
  • the handle section 34 of the handle part 14 is T-shaped (T-shaped handle section 34).
  • Narrow sides 64, 66 (lateral ends of the cross line of the “T”) each have an opening 46, 47 for inserting the plug-in pin 44 of the base part 42.
  • the base part 42 can optionally be inserted into the opening 46 or the opening 47 (assembly possible on both sides).
  • the handle section 34 is the section of the handle part 14 which is set up to be gripped or grasped by a user by hand.
  • FIG. 7 shows an embodiment of the machine tool 10 which largely corresponds to the embodiment described above. To avoid repetition, reference is therefore made to the above explanations (same or functionally identical elements are provided with identical reference symbols).
  • the present machine tool 10 also has a handle part 14 which has a handle section 34.
  • a further handle section 70 adjoins this handle section 34 at the end 36 facing away from the connection arrangement 16.
  • the machine tool 10 thus has two handle sections 34, 70.
  • One or more openings 72 for inserting the plug-in pin 44 of the base part 42 are formed on the further handle section 70 (only one opening 72 is provided with reference symbols).
  • the hose holding device 32 can thus also be plugged into the further handle section 70.
  • the further handle section 70 is also T-shaped.
  • the openings 72 are each formed on the narrow sides of the T-shaped handle section 70 (without reference symbols).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Clamps And Clips (AREA)
  • Insertion Pins And Rivets (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Knives (AREA)

Abstract

L'invention concerne une machine-outil portative (10), en particulier une machine de traitement de surface (10), comprenant une tête d'usinage (12), une partie poignée (14) et un agencement de liaison (16) qui relie la tête d'usinage (12) à la partie poignée (14), une sortie de tuyau souple (22) pour le raccordement d'un tuyau souple (24) étant formée sur l'agencement de liaison (16) ou sur la partie poignée (14), un dispositif de maintien de tuyau souple (32) pour maintenir le tuyau (24) étant disposé sur la partie poignée (14) à une certaine distance de la sortie de tuyau souple (22).
EP20797050.0A 2019-11-05 2020-10-16 Machine-outil portative Pending EP3880402A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019106152.9U DE202019106152U1 (de) 2019-11-05 2019-11-05 Handgeführte Werkzeugmaschine
PCT/EP2020/079149 WO2021089299A1 (fr) 2019-11-05 2020-10-16 Machine-outil portative

Publications (1)

Publication Number Publication Date
EP3880402A1 true EP3880402A1 (fr) 2021-09-22

Family

ID=73014478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20797050.0A Pending EP3880402A1 (fr) 2019-11-05 2020-10-16 Machine-outil portative

Country Status (6)

Country Link
US (1) US20220040810A1 (fr)
EP (1) EP3880402A1 (fr)
JP (1) JP7352635B2 (fr)
CN (1) CN113286680A (fr)
DE (1) DE202019106152U1 (fr)
WO (1) WO2021089299A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023158729A1 (fr) 2022-02-18 2023-08-24 Milwaukee Electric Tool Corporation Visseuse de fermeture motorisée

Citations (1)

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Also Published As

Publication number Publication date
DE202019106152U1 (de) 2021-02-09
US20220040810A1 (en) 2022-02-10
CN113286680A (zh) 2021-08-20
JP7352635B2 (ja) 2023-09-28
JP2022534341A (ja) 2022-07-29
WO2021089299A1 (fr) 2021-05-14

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