US20020065027A1 - Hand-guided electrically-powered tool with handle - Google Patents

Hand-guided electrically-powered tool with handle Download PDF

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Publication number
US20020065027A1
US20020065027A1 US10/037,904 US3790401A US2002065027A1 US 20020065027 A1 US20020065027 A1 US 20020065027A1 US 3790401 A US3790401 A US 3790401A US 2002065027 A1 US2002065027 A1 US 2002065027A1
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US
United States
Prior art keywords
handle
tool
working
electrically
hand tool
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.)
Abandoned
Application number
US10/037,904
Inventor
Franz-Paul Mayr
Olaf Bode
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Assigned to HILTI AKTIENGESELLSCHAFT reassignment HILTI AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BODE, OLAF, MAYR, FRANZ-PAUL
Publication of US20020065027A1 publication Critical patent/US20020065027A1/en
Abandoned legal-status Critical Current

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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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
    • 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
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
    • B25H3/006—Storage means specially adapted for one specific hand apparatus, e.g. an electric drill

Definitions

  • the invention relates to a hand-guided and operated electrically-powered tool, in particular a belt sander or the like, with a tool extending from a housing for working a workpiece, whereby the housing has at least one handle on the side of the housing opposite the workpiece.
  • Hand-guided electrically-powered tools of the above type are used especially for small jobs.
  • this type of electrically powered tool is easy to transport and is versatile in its applications.
  • the housing provides for protection and on the other hand provides for enhanced ease in the handling of the electrically-powered tool.
  • a motor-driven tool projects from the housing and thus allows the user to work on a workpiece, for example a wooden board.
  • the handle is provided for guiding the electrically-powered tool, especially the tool part itself. Said handle is arranged on the housing, on the side opposite the working tool itself. In this fashion, it is possible for the operator to guide the electrically-powered hand tool easily and safely.
  • the handle facilitates application of pressure by the operator on the tool and so, for example, to control or to interrupt the work process.
  • the handle facilitates positioning of the electrically-powered hand tool by the operator.
  • the object of the present invention is to provide a hand-guided electrically-powered hand tool that facilitates the manipulation of a mounted working tool part.
  • the object is achieved in that the handle has at least one essentially planar support surface for a stable bearing of the electrically-powered hand tool in a position that excludes contact of the tool part with the workpiece.
  • the handle has at least one planar support surface upon which the hand tool is supported, the operator is provided with the opportunity of easy access to the working tool part, without the use of accessory means.
  • the stable bearing is particularly important in order to prevent the electrically-powered hand tool from tipping out of its position. In order to provide problem-free manipulation of the working tool part, for example, tool exchange or adjustment of same, there is no contact in the support position between the working tool part and the workpiece.
  • the handle has a plurality of bearing surfaces, all of which are arranged in the same plane, in order to assure the secure bearing of the electrically-powered hand toll even in the case of larger magnitude external forces.
  • the secure bearing of the hand tool is also provided in the case of the electrically-powered hand tool from which the tool part has been removed.
  • the preferred embodiment provides the advantage, in that the shape of the housing, in particular the handle, is less restricted. In the case of only one bearing, the gravity vector running through the center of gravity of the electrically-powered hand toll borne in such position must assure a stable bearing.
  • the handle has two bearing surfaces. In this fashion, a secure bearing and compact construction of the housing is made possible. If the working tool part should represent a relatively high proportion of the weight of the overall weight, then the handle is advantageously provided with three bearing surfaces.
  • the bearing surfaces are arranged essentially parallel to the working surface of the tool part in order to achieve optimum weight distribution and thus a stable bearing of the electrically-powered hand tool in its position. Moreover, in such position the operator is provided with optimal access to the tool part.
  • the handle is at least partly comprised of an elastic material so that on the one hand the electrically-powered hand tool in such position does not slip and on the other hand minor irregularities in the surface are evened out by the bearing surface.
  • the handle is preferably at least partly made of rubber in order to assure that the electrically-powered hand tool can be manufactured economically.
  • FIG. 1 is a side view of an electrically-powered hand tool according to the invention in a working position
  • FIG. 2 is similar to FIG. 1 with the electrically-powered hand tool inverted and supported upon a bearing surface.
  • FIGS. 1 and 2 a manually guided and operated electrically-powered hand tool, in particular a belt sander, accordingly, the invention is illustrated and includes a working tool part 2 projecting from a housing 1 for working of a workpiece 6 .
  • the housing 1 has, arranged on the side opposite working tool part 2 , a handle 4 .
  • the working tool part 2 in particular abrasive paper, is removably fastened by means of clips 7 to a motor-driven vibrating plate 8 .
  • the handle 4 comprises a switch element 9 for switching on and switching off a motor (not shown in the figures).
  • a switch element 9 for switching on and switching off a motor (not shown in the figures).
  • the tool In a working position, as illustrated in FIG. 1, the tool is in contact with a surface 10 of the workpiece 6 that is to be worked
  • the handle 4 has two bearing surfaces 5 on the side opposite to that of the working tool part.
  • the two bearing surfaces 5 are arranged essentially in the same plane E, whereby the inventive belt sander can be stably supported in a position in which the tool part 2 is not in contact with the surface 10 of the workpiece 6 , as can be seen particularly in FIG. 2.
  • the operator can operate the two clips 7 , for example, to replace the working tool part 2 , in particular the abrasive paper.
  • the handle is comprised partly of an elastic material, in particular rubber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Portable Power Tools In General (AREA)

Abstract

A hand-guided and operated electrically-powered hand tool, in particular a belt sander or the like, is comprised of a working tool part (2) projecting from a housing for the working of a workpiece. The housing (1) has on the side facing away from the working tool part (2) a handle (4) for guiding the tool. Planar surfaces on bearing surfaces (5) arranged on the handle provide for stable bearing of the electrically-powered hand tool in a change position. In the change-position, there is no contact between the working tool part and the workpiece, so that uncomplicated replacement of the tool part is possible.

Description

    BACKGROUND OF THE INVENTION
  • The invention relates to a hand-guided and operated electrically-powered tool, in particular a belt sander or the like, with a tool extending from a housing for working a workpiece, whereby the housing has at least one handle on the side of the housing opposite the workpiece. [0001]
  • Hand-guided electrically-powered tools of the above type are used especially for small jobs. By virtue of a compact construction, this type of electrically powered tool is easy to transport and is versatile in its applications. On the one hand, the housing provides for protection and on the other hand provides for enhanced ease in the handling of the electrically-powered tool. A motor-driven tool projects from the housing and thus allows the user to work on a workpiece, for example a wooden board. The handle is provided for guiding the electrically-powered tool, especially the tool part itself. Said handle is arranged on the housing, on the side opposite the working tool itself. In this fashion, it is possible for the operator to guide the electrically-powered hand tool easily and safely. Furthermore, the handle facilitates application of pressure by the operator on the tool and so, for example, to control or to interrupt the work process. In addition, the handle facilitates positioning of the electrically-powered hand tool by the operator. [0002]
  • The disadvantage in known electrically-powered hand tools is the fact that the electrically-powered hand tool must be held by the operator with at least one hand when changing the working tool part. Frequently, however, both hands are needed when manipulating the electrically-powered hand tool, for example, in order to change the working tool part. In such cases, the operator must make use of special accessory means such as, for example, special bases or supports. [0003]
    • SUMMARY OF THE INVENTION
  • The object of the present invention is to provide a hand-guided electrically-powered hand tool that facilitates the manipulation of a mounted working tool part. [0004]
  • According to the invention, the object is achieved in that the handle has at least one essentially planar support surface for a stable bearing of the electrically-powered hand tool in a position that excludes contact of the tool part with the workpiece. [0005]
  • By virtue of the fact that the handle has at least one planar support surface upon which the hand tool is supported, the operator is provided with the opportunity of easy access to the working tool part, without the use of accessory means. The stable bearing is particularly important in order to prevent the electrically-powered hand tool from tipping out of its position. In order to provide problem-free manipulation of the working tool part, for example, tool exchange or adjustment of same, there is no contact in the support position between the working tool part and the workpiece. [0006]
  • Preferably, the handle has a plurality of bearing surfaces, all of which are arranged in the same plane, in order to assure the secure bearing of the electrically-powered hand toll even in the case of larger magnitude external forces. Furthermore, in this fashion the secure bearing of the hand tool is also provided in the case of the electrically-powered hand tool from which the tool part has been removed. In contrast with a single bearing surface, the preferred embodiment provides the advantage, in that the shape of the housing, in particular the handle, is less restricted. In the case of only one bearing, the gravity vector running through the center of gravity of the electrically-powered hand toll borne in such position must assure a stable bearing. [0007]
  • Advantageously, the handle has two bearing surfaces. In this fashion, a secure bearing and compact construction of the housing is made possible. If the working tool part should represent a relatively high proportion of the weight of the overall weight, then the handle is advantageously provided with three bearing surfaces. [0008]
  • In the preferred fashion, the bearing surfaces are arranged essentially parallel to the working surface of the tool part in order to achieve optimum weight distribution and thus a stable bearing of the electrically-powered hand tool in its position. Moreover, in such position the operator is provided with optimal access to the tool part. [0009]
  • Advantageously, the handle is at least partly comprised of an elastic material so that on the one hand the electrically-powered hand tool in such position does not slip and on the other hand minor irregularities in the surface are evened out by the bearing surface. [0010]
  • The handle is preferably at least partly made of rubber in order to assure that the electrically-powered hand tool can be manufactured economically.[0011]
    • BRIEF DESCRIPTION OF THE DRAWING
  • The invention is more fully explained below using an illustrative embodiment. The drawing shows that: [0012]
  • FIG. 1 is a side view of an electrically-powered hand tool according to the invention in a working position; and [0013]
  • FIG. 2 is similar to FIG. 1 with the electrically-powered hand tool inverted and supported upon a bearing surface.[0014]
    • DETAILED DESCRIPTION OF THE INVENTION
  • In FIGS. 1 and 2 a manually guided and operated electrically-powered hand tool, in particular a belt sander, accordingly, the invention is illustrated and includes a [0015] working tool part 2 projecting from a housing 1 for working of a workpiece 6. For guiding the belt sander, the housing 1 has, arranged on the side opposite working tool part 2, a handle 4. The working tool part 2, in particular abrasive paper, is removably fastened by means of clips 7 to a motor-driven vibrating plate 8.
  • The handle [0016] 4 comprises a switch element 9 for switching on and switching off a motor (not shown in the figures). In a working position, as illustrated in FIG. 1, the tool is in contact with a surface 10 of the workpiece 6 that is to be worked
  • The handle [0017] 4 has two bearing surfaces 5 on the side opposite to that of the working tool part. The two bearing surfaces 5 are arranged essentially in the same plane E, whereby the inventive belt sander can be stably supported in a position in which the tool part 2 is not in contact with the surface 10 of the workpiece 6, as can be seen particularly in FIG. 2. In such position, the operator can operate the two clips 7, for example, to replace the working tool part 2, in particular the abrasive paper. In order to even out any eventual unevenness in the support plane E, the handle is comprised partly of an elastic material, in particular rubber.

Claims (6)

What is claimed is:
1. A manually operated electrically-powered hand tool, such as a belt sander and the like, comprising a housing (1) with a first surface for mounting a working tool part (2) having a working surface for operating on a workpiece and a second surface directly opposite said working surface, at least one handle (4) on said second surface, said handle has at least one substantially planar bearing surface for stably supporting said hand tool with said working surface of said work tool part (2) out of contact with the workpiece.
2. A manually operated electrically-powered hand tool, as set forth in claim 1, wherein the said handle (4) has a plurality of bearing surfaces (5), with all of said bearing surfaces located in the same plane.
3. A manually operated electrically-powered hand tool, as set forth in claim 2, wherein said handle (4) has two bearing surfaces (5).
4. A manually operated electrically-powered hand tool, as set forth in claim 2, wherein said bearing surfaces (5) are arranged substantially parallel to the working surface of said working tool part (2).
5. A manually operated electrically-powered hand tool, as set forth in claim 1, wherein said handle (4) is comprised at least in part of an elastic material.
6. A manually operated electrically-powered hand tool, as set forth in claim 5, wherein said handle (4) is comprised at least in part of rubber.
US10/037,904 2000-10-02 2001-11-09 Hand-guided electrically-powered tool with handle Abandoned US20020065027A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10055854.2 2000-10-02
DE10055854A DE10055854A1 (en) 2000-11-10 2000-11-10 Hand-held power tool with handle

Publications (1)

Publication Number Publication Date
US20020065027A1 true US20020065027A1 (en) 2002-05-30

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Application Number Title Priority Date Filing Date
US10/037,904 Abandoned US20020065027A1 (en) 2000-10-02 2001-11-09 Hand-guided electrically-powered tool with handle

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US (1) US20020065027A1 (en)
JP (1) JP2002192483A (en)
DE (1) DE10055854A1 (en)
SE (1) SE0103640L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150118945A1 (en) * 2013-10-28 2015-04-30 Black & Decker Inc. Handle arrangement for sander

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004003027B3 (en) * 2004-01-21 2005-07-14 Metabowerke Gmbh Electric hand tool device, e.g. drill or screwdriver, has rotary drive for tool in holder, housing for drive motor for driving tool connected via drive shaft and handle for mounting on housing near center of gravity of tool device
JP4645332B2 (en) * 2005-07-08 2011-03-09 日立工機株式会社 Portable electric circular saw
DE102009009936A1 (en) * 2009-02-20 2010-08-26 Metabowerke Gmbh Electric hand tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150118945A1 (en) * 2013-10-28 2015-04-30 Black & Decker Inc. Handle arrangement for sander
US9387578B2 (en) * 2013-10-28 2016-07-12 Black & Decker Inc. Handle arrangement for sander
US10046433B2 (en) 2013-10-28 2018-08-14 Black & Decker Inc. Handle arrangement for sander

Also Published As

Publication number Publication date
DE10055854A1 (en) 2002-05-29
SE0103640D0 (en) 2001-11-01
SE0103640L (en) 2002-05-11
JP2002192483A (en) 2002-07-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HILTI AKTIENGESELLSCHAFT, LIECHTENSTEIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAYR, FRANZ-PAUL;BODE, OLAF;REEL/FRAME:012455/0361;SIGNING DATES FROM 20011025 TO 20011026

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION