EP1163083A1 - Meuleuse d'angle - Google Patents

Meuleuse d'angle

Info

Publication number
EP1163083A1
EP1163083A1 EP00993774A EP00993774A EP1163083A1 EP 1163083 A1 EP1163083 A1 EP 1163083A1 EP 00993774 A EP00993774 A EP 00993774A EP 00993774 A EP00993774 A EP 00993774A EP 1163083 A1 EP1163083 A1 EP 1163083A1
Authority
EP
European Patent Office
Prior art keywords
insert
fixing device
shell
housing
mounting shell
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.)
Granted
Application number
EP00993774A
Other languages
German (de)
English (en)
Other versions
EP1163083B1 (fr
Inventor
Roland Walz
Peter Stierle
Ralph Dammertz
Maria-Margareta Sulea
Stefan Heess
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1163083A1 publication Critical patent/EP1163083A1/fr
Application granted granted Critical
Publication of EP1163083B1 publication Critical patent/EP1163083B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools

Definitions

  • the invention go from an angle grinding 'fer according to the preamble of claim 1 from.
  • An angle grinder with such a housing is known from DE 43 44 128.
  • the housing is formed in one piece and screwed onto a cup-shaped motor housing.
  • the work spindle To replace a tool that is attached to the work spindle, the work spindle must be fixed. This is done in that a spindle lock by means of a hand lever presses a locking cam against the force of a return spring into a recess which is formed on a clamping flange which is connected to the work spindle so that it rotates with it.
  • high forces or clamping forces occur.
  • both the spindle bearing receptacle and the locking device consist of a high-quality, low-wear material. Since the spindle bearing receptacle is made integrally with the housing, it is necessary for the entire housing to be made from such a high-quality, expensive material.
  • the angle grinder according to the invention with the features of claim 1 has the advantage that the entire housing can be produced in a shell construction and can be made of an inexpensive material, only the insert part which can be inserted separately into the housing has to consist of particularly high-quality material. This results in the possibility of producing a cheaper product than was previously possible.
  • the entire housing is constructed in a shell construction, that is to say with an assembly shell and a cover shell, between which the insert part is inserted.
  • the insert is fixed with its first and second fixing device between the mounting shell and the cover shell, the spindle bearing receptacle and the spindle lock receptacle also arranged in the insert always remain stationary in their position relative to the housing.
  • Spindle lock receptacles are arranged parallel to one another in a base body of the insert and this base body has an opening that is aligned perpendicular to the spindle lock receptacle designed as a continuous hole. This makes it possible to fix the insert between the mounting shell and the cover shell, each of which has a screw dome that is aligned with the through hole, in its position between the mounting shell and the cover shell.
  • the insert part has an extension arm on which a first fixing device is arranged, the cross section of the extension arm being double T-shaped.
  • the first can be inserted into the resulting recesses on both sides of the boom Firmly engage the fixing means of the mounting shell and the second fixing means of the cover shell, so that a good fixation of the angular position of the insert part in the housing between the two shells is ensured.
  • the insert consists of a high-quality, low-wear material, whereas the mounting shell and the cover shell consist of an inexpensive material. This is made possible by the fact that only the spindle bearing receptacle and the spindle lock bore are heavily stressed, whereas the remaining parts of the housing are hardly affected.
  • Grivory or a similar material is used as the material for the insert. This is a glass-fiber reinforced, heavy-duty polyamide plastic, called z. B. PA 6-66 GF.
  • An advantageous fixing of the insert part in the housing is achieved in that the extension of the insert part bears over a large area on first and second contact surfaces of the mounting shell or cover shell.
  • the insert part advantageously has, in the region of its through hole, each of the screw domes facing first and second centering devices which can be brought into engagement with first and second centering means of the screw domes. This ensures centering and thus correct insertion of the insert between the mounting shell and the cover shell.
  • FIG. 1 shows a perspective view of an insert
  • FIG. 2 shows a top view of the insert from FIG. 1 in the direction II
  • FIG. 3 shows a cross section through the insert along the plane III-III in FIG. 2
  • FIG. 4 shows a top view of the inner surface of a mounting shell
  • FIG 5 shows a plan view of the inside of a cover shell
  • FIG. 6 shows a section through a completely assembled housing in the plane VI-VI of FIGS. 4 and
  • FIG. 7 shows a section through the fully assembled housing along the plane VII-VII in FIG. 6.
  • FIGS. 1 and 2 show views of an insert 1. Identical parts are provided with the same reference numerals.
  • the insert 1 has a base body 14 and a bracket 15.
  • a spindle bearing receptacle 13, a spindle lock receptacle 12 and a second fixing device 11 are formed on the base body 14.
  • the spindle bearing receptacle 13 is designed as a blind hole 130 (dashed line in FIG. 2).
  • the spindle lock receptacle 12 is designed as a continuous hole 120 (shown in broken lines in FIG. 2).
  • the central longitudinal axes of the through hole 120 and the blind hole 130 are aligned in parallel.
  • the second fixing device 11 has an opening 140 which is oriented perpendicular to the plane which is formed by the two central longitudinal axes of the through hole 120 and the blind hole 130. In the area around the two openings of the through hole 120, a first centering device 16 (see FIG. 6) or a second centering device 17 is formed.
  • Wing 110, 111 are provided on the side of the base body 14.
  • the wing 111 is designed as a web projecting from the base body 14.
  • the wing 110 is located symmetrically on the opposite side of the base body 14. These wings 110, 111 are provided in order to fix the insert in the assembled state and in particular to prevent rotation about the motor axis.
  • the arm 15 of the insert 1 is formed integrally with the base body 14 and extends from the spindle bearing receptacle 13.
  • a first fixing device 10 is formed at the end of the boom 15 remote from the base body 14.
  • the entire boom 15 is double T-shaped.
  • the shape of the boom 15 is illustrated by the cross section shown in FIG. 3 through the first fixing device 10. Due to the double-T shape, there are two depressions 100, 101 which are separated from one another by a wall 102.
  • the wall 102 runs in the plane formed by the central longitudinal axes of the blind hole 130 and the through hole 120.
  • the first recess 100 and the second recess 101 are U-shaped in cross section. In the top view in FIG. 2, they have an oval shape.
  • FIG. 2 indicates how a second fixing means 40 in the form of a second rib 400, which is formed on a cover shell 4 (see FIG. 5), engages in the second depression 101.
  • FIG. 4 shows the inside of a mounting shell 3 of a housing 2 (see Figures 6 and 7). Only the parts of the mounting shell 3 that are essential to the invention are described below.
  • the mounting shell 3 has a first rib 300 on, which engages in the assembled state of the housing 2 with the first recess 100 of the bracket 15 (see Figure 3) so that the insert 1 (see Figures 1 to 3) is fixed with its first fixing device 10 in its angular position with respect to the mounting shell 3 ,
  • the extension arm 15 lies over a large area on the first contact surface 301.
  • the mounting shell 3 has a first screw dome 31.
  • a first centering means 32 which engages with the first centering device 16 (see FIG.
  • the mounting shell 3 has a first receiving opening 33 through which a spindle lock bolt 6 (see FIG. 7) can be introduced into the through hole 120 (see FIGS. 1, 2, 6 and 7) in the spindle lock holder 12 of the base body 14 of the insert 1 , Furthermore, the mounting shell 3 has a first web 310 and a second web 320 with recesses 311 and 321 for receiving the wing 110. Further details regarding the relative position between the mounting shell 3 and the insert 1 are described with reference to FIGS. 6 and 7.
  • FIG. 5 shows the inside of the cover shell 4, which in the state assembled with the mounting shell 3 is achieved by folding up about the central axis between FIGS. 4 and 5.
  • a second support surface 401 ensures that the insert 1 with its extension 15 in the assembled state of the housing 2 is in addition to the large-area support described above on the mounting shell 3 and also lies on the cover shell 4 over a large area.
  • a second rib 400 on the inside of the lid shell 4 engages in the second depression 101 of the first fixing device 10 of the insert 1 (see FIG. 2).
  • the cover shell 4 has a second screw dome 41, which is arranged in alignment with the first screw dome 31 of the mounting shell 3 in the assembled state.
  • the second screw dome has a second centering means 42 around its opening, which in the assembled state of the housing 2 engages with the second centering device 17 of the second fixing device 11 of the insert part 1 (see FIGS. 1 and 2).
  • the cover shell 4 has a second receiving opening 43 which, in the assembled state of the housing 2, has a continuous receiving opening with the first receiving opening 33 of the mounting shell 3, into which the spindle lock bolt 6 (see FIG. 7) can be inserted.
  • a first web 410 and a second web 420 with recesses 411 and 421 are provided for receiving the wing 111.
  • FIG. 6 shows the front area of the housing 2 in its fully assembled state after the insert 1 has been inserted between the mounting shell 3 and the cover shell 4.
  • the blind hole 130 in which a spindle bearing 8 for receiving the work spindle 7 (not shown) is arranged, can be seen on the insert part 1.
  • the through hole 120 formed parallel to the blind hole 130 is clearly visible.
  • the opening 140 oriented perpendicular to the plane, which is formed by the central longitudinal axes of the through hole 120 and the blind hole 130, is arranged in alignment with the first screw dome 31 of the mounting shell 3 and the second screw dome 41 of the cover shell 4.
  • a first centering means 32 on the first screw dome 31 engages in a first centering device 16 on the insert 1.
  • a second centering device 17 on the insert 1 engages in a second centering means 42 on the second screw dome 41 of the cover shell 4.
  • a screw 5 is guided to each other through the second screw dome 41, the opening 140, which engages in the first screw dome 31 and thus leads to a secure fixation.
  • FIG. 7 shows the spatial arrangement of the insert 1 in the mounting shell 3.
  • the extension arm 15 with its first fixing device 10 lies against the first bearing surface 301 (see FIG. 4) of the mounting shell 3 over a large area.
  • the first rib 300 of the first fixing means 30 on the mounting shell 3 engages in the first recess 100 of the first fixing device 10, as described for FIG. 4.
  • the second fixing device 11 is used in addition to the fixing just described by means of the first fixing device 10.
  • the work spindle 7 is rotatably mounted in the spindle bearing 8 in relation to the insert 1.
  • a spindle lock bolt 6 is inserted through the first receiving opening 33 in the through hole 120 in order to fix the work spindle 7 in order to carry out a tool change.
  • the housing 2 is assembled as follows:
  • Insert 1 is inserted into mounting shell 3 in such a way that the position described for FIGS. 1 to 7 is reached. Essentially, this means that the first fixing device 10 is brought into engagement with the first fixing means 30 and the second fixing device 11 is centered with respect to the first screw dome 31 such that the opening 140 is aligned with the first screw dome 31.
  • the wing 110 of the insert 1 comes to rest in the recess 311 of the first web 310 and in the recess 321 of the second web 320.
  • the cover shell 4 is placed on the mounting shell 3 such that the second fixing means 40 is in engagement with the first fixing device 10 and the second screw dome 41 is aligned with the opening 140 and the first screw dome 31.
  • the wing 111 is also brought into engagement with the recess 411 of the first web 410 and with the recess 421 of the second web 420. This ensures additional protection against rotation of the insert 1, in particular along the motor axis. Then the cover shell 4 is screwed to the mounting shell 3 by means of the screw 5, as described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Connection Of Plates (AREA)

Abstract

L'invention concerne une meuleuse d'angle comportant un carter (2) qui est produit de manière plus économique du fait qu'elle comporte une coque de montage (2), un couvercle cupuliforme (4) et une pièce rapportée (1) placée entre les deux coques. La pièce rapportée (1) comporte un premier dispositif de fixation (10) et un second dispositif de fixation (11) à fixer entre la coque de montage (3) et le couvercle cupuliforme (4) et présente une cavité de blocage de poupée (12) et une cavité de logement de poupée (13). La coque de montage (3) présente un premier moyen de fixation (30) dans lequel entre le premier dispositif de fixation (10) de la pièce rapportée (1). Le couvercle cupuliforme (4) comporte un second moyen de fixation (40) qui entre dans le dispositif de fixation (10) de la pièce rapportée (1). Ladite pièce rapportée (1) comporte en outre un second dispositif de fixation (11) qui peut être mis en contact sur la coque de montage (3) et le couvercle cupuliforme (4), avec des moyens correspondants.
EP00993774A 2000-01-10 2000-11-25 Meuleuse d'angle Expired - Lifetime EP1163083B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10000702A DE10000702A1 (de) 2000-01-10 2000-01-10 Winkelschleifer
DE10000702 2000-01-10
PCT/DE2000/004209 WO2001051250A1 (fr) 2000-01-10 2000-11-25 Meuleuse d'angle

Publications (2)

Publication Number Publication Date
EP1163083A1 true EP1163083A1 (fr) 2001-12-19
EP1163083B1 EP1163083B1 (fr) 2006-02-01

Family

ID=7627100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00993774A Expired - Lifetime EP1163083B1 (fr) 2000-01-10 2000-11-25 Meuleuse d'angle

Country Status (5)

Country Link
US (1) US6669542B1 (fr)
EP (1) EP1163083B1 (fr)
CN (1) CN1164394C (fr)
DE (2) DE10000702A1 (fr)
WO (1) WO2001051250A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1327497B1 (fr) * 2002-01-10 2006-05-31 Black & Decker Inc. Boîte à engrenages
US8087977B2 (en) 2005-05-13 2012-01-03 Black & Decker Inc. Angle grinder
US8277292B2 (en) * 2007-04-30 2012-10-02 Whelan Patrick J Inline handheld power tool
US10818450B2 (en) 2017-06-14 2020-10-27 Black & Decker Inc. Paddle switch
CN109202445B (zh) * 2018-11-13 2024-03-29 浙江佛尔泰智能设备有限公司 角磨机的前盖自动组装生产线

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807078A1 (de) * 1988-03-04 1989-09-14 Black & Decker Inc Bohrhammer
DE4101705C2 (de) * 1990-09-19 1996-12-19 Atlas Copco Elektrowerkzeuge Handgeführte Elektrowerkzeugmaschine mit einer Einrichtung zum schnellen Stillsetzen des Werkzeuges
US5349785A (en) * 1992-11-30 1994-09-27 Black & Decker Inc. Motor support for orbital polisher
DE4344128B4 (de) * 1993-12-23 2008-09-11 Robert Bosch Gmbh Elektrische Handwerkzeugmaschine mit einer Spindelarretierung
US6290587B1 (en) * 1995-10-20 2001-09-18 Wilton Tool Company, Llc Electrically-powered polisher
US5595532A (en) * 1995-10-20 1997-01-21 Waxing Corporation Of America, Inc. Electrically-powered polisher
US5678272A (en) * 1995-10-20 1997-10-21 Waxing Corporation Of America, Inc. Power tool having a quick release system for attaching a working element
US5718621A (en) * 1996-09-11 1998-02-17 Turley; Edward Michael Reversible angle grinder with top arbour lock
DE19805577A1 (de) * 1997-02-27 1998-09-03 Bosch Gmbh Robert Elektrische Handwerkzeugmaschine
ATE287320T1 (de) * 1998-12-31 2005-02-15 Fein C & E Gmbh Elektrowerkzeug, insbesondere winkelschleifer
DE19941620A1 (de) * 1999-09-01 2001-03-08 Bosch Gmbh Robert Handwerkzeugmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0151250A1 *

Also Published As

Publication number Publication date
CN1164394C (zh) 2004-09-01
DE10000702A1 (de) 2001-07-12
CN1343155A (zh) 2002-04-03
US6669542B1 (en) 2003-12-30
WO2001051250A1 (fr) 2001-07-19
EP1163083B1 (fr) 2006-02-01
DE50012174D1 (de) 2006-04-13

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